問題詳情

56.Be nice to service people - whether they’re airline counter reps, your server/bartenders on the road,_____the people cleaning your hotel room.
(A) at
(B)by
(C)or
(D)and

參考答案

答案：C
難度：簡單0.833333
統計：A(1),B(0),C(5),D(0),E(0)