问题

quantities of information, as well as sometimely help ________ since the organization was built

A:is cleaning
B:has cleaned
C:was cleaning
D:had cleaned

正确答案是：

同类题型

was the trouble with you the day beforeyesterday— When I practiced running, my strength _____ and Ifell onto the ground

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Who is ______, John, Daniel or Jack

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Not until ___to do my homework ____ how much time I had wasted playing computer games.