5. My father is planning a family holiday now. Therefore, he asks us____ we have free time in August.
(A)whether
(B)however
(C) what
(D) whoever
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統計: A(249), B(29), C(62), D(40), E(0) #2077774
統計: A(249), B(29), C(62), D(40), E(0) #2077774