问题

I haven’t seen Mary recentlyAnd you?— Me neitherI’m afraid she _________ to her experiment for too long a time

A:is devoting
B:was devoted
C:has been devoting
D:has been devoted

正确答案是：

同类题型

Itwas 1920 ______ regular radio broadcasts began

The enemy troop could hardly make any advance, and ________ could they fall back.

When did your father ____ your mother

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uncertain sideeffect the medicine will bring about , though about one thousand patients havetaken it.