7. You _ join us on the volunteer team in Africa, but you _ if you like.
(A) shouldn't / were able to
(B) mustn't / needn't
(C)can't / shouldn't'
(D) needn't/can

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統計： A(0), B(1), C(0), D(1), E(0) #3443210

詳解 (共 1 筆)

#6746641
題目解析 這道題目考查的是情態動詞的使...
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