保证准确率!
11. D
must be doing 一定正在做某事,表示对现在正在进行的动作非常肯定的推测
12. D
increase by... 增加了...;increase to... 增加到...
13. C
compare...to... 把...比喻为...,compare...with... 把...和...相比,由此排除BD
句子主语the students和compare之间为主动关系,所以用现在分词comparing
14. A
省略语法,即 not to = not to (play football in the street)
15. A
如果没有主句he mentioned,则答案为 will come, receives(主将从现)
因为主句为过去时,所以分别变为:would come 和 received
16. A
when引导的时间状语从句中,主语为the days,而I looked forward to则为定语从句,修饰主语the days
所以答案为从句的谓语,所以用A came(对应前面的 it didn't)
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