问题

18 My mother for Beijing in a few days I wonder when theearliest plane on Monday

A:have done
B:had been doing
C:had been done
D:have been done

正确答案是：

同类题型

Every man worker and every woman worker _____ free medical care. At Christmas each boy and each girl ___ given a present.

I dislike _________when others laugh at me in public or think poorly of me behind

下列词语中加点字的注音全对的一项是（）

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useful inventionit is.—Yes, It helps us a lot.