i'm worried about my English.()harder()you will catch up with your classmates!A.working,andB.to work,orC.work,and D.worked,or
问题描述：
i'm worried about my English.()harder()you will catch up with your classmates!
A.working,and
B.to work,or
C.work,and
D.worked,or
答
C 祈使句+and +句子 相当于If 引导的条件从句 if you work harder, you will catch up with your classmates.
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答
i'm worried about my English.()harder()you will catch up with your classmates!
A.working,and
B.to work,or
C.work,and
D.worked,or
选A
动词作主语用ing形式
and表示因果关系
而or是转折关系
所以选A
答
C
句型：
祈使句（动词原形开头） + and + 陈述句（常用will+ 动词原形）
此句型的祈使句表条件
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