Projece needs labour more than ____because it is very diifficult

Projece needs labour more than ____because it is very diifficult
A.has been put in B.have been put in C.being put in D.to put in
英语人气:350 ℃时间:2019-12-19 03:14:31
优质解答
A因为前后要一致,前面用第三人称单数,more than后也应该是第三人称单数,
只有A符合题意.
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