It is essential that these application forms _____
It is essential that these application forms _____
A.must be sentB.will be sentC.are sentD.be sent
A.must be sentB.will be sentC.are sentD.be sent
英语人气:945 ℃时间:2019-10-19 17:45:40
优质解答
D.be sent 虚拟语气,be前省略了should
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