問題詳情

16. Jack: Hi, David. We are playing basketball. Come and join us!David: Sorry, I _____. I have to go home now.
(A) am not
(B) can’t
(C) don’t
(D) wasn’t

參考答案

答案:B
難度:簡單0.873016
統計:A(21),B(385),C(25),D(4),E(0)

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