It is necessary that he____ the assignme

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问题 It is necessary that he____ the assignment without delay.A.hand inB.hands inC.must hand inD.has to hand in

选项 A.hand in
B.hands in
C.must hand in
D.has to hand in

答案 A

解析 It's necessary that从句中要用虚拟语气,should do,故选A。
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