1The Correct Word 1
2The Appropriate Word 11
3The Better Word 23
4Sentence Base 31
5Expanded Sentence Base （Ⅰ） 39
6Expanded Sentence Base （Ⅱ） 51
7Joining Sentences Together（Ⅰ） 65
8 Joining Sentences Together（Ⅱ） 75
9 Sentence Variety 91
10 Punctuation 103
References 111