問題詳情

There are books all over the classroom floor. The books ________ and putting away before you leave the room.
(A)need picking up
(B)need to pick up
(C)need pick up
(D)need picked up

參考答案

答案:A
難度:適中0.583333
統計:A(161),B(58),C(9),D(26),E(0)

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