part 1
1.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to test your present vocabulary</span>
2.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to start building your vocabulary</span>
3.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to talk about personality types (s1-3)</span>
4.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to talk about doctors (s4-6)</span>
5.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to talk about various practitioners (s7-10)</span>
6.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to talk about science and scientists (s11-13)</span>
7.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to talk about liars and lying (s14-17)</span>
8.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to check your progress:comprehensive test </span><span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">Ⅰ</span><span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;"> (s18)</span>
part 2
9.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to talk about actions （s19-23）</span>
10.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to talk about various speech habits （s24-27）</span>
11.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to insult your enemies (s28-31)</span>
12.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to flatter your friends (s32-37)</span>
13.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to check your progress:comprehensive test </span><span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">Ⅱ</span><span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;"></span><span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;"> (s38)</span>
part 3
14.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to talk about common phenomena and occasions （s39-41）</span>
15.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to talk about what goes on （s42-44）</span>
16.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to talk about a variety of personal characteristics(s45-46)</span>
17.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to check your progress:comprehensive test </span><span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">Ⅲ</span><span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;"> (s47)</span>
18.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to check your standing as a amateur etymologist</span>
19.<span style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 14px;">How to keep on building your vocabulary</span>
