33. Sometimes they work the farm, and sometimesthey play the mountains.(A) in; on (B) on; in(C) of;

問題詳情

33. Sometimes they work the farm, and sometimesthey play the mountains.
(A) in; on
(B) on; in
(C) of; from
(D) from; at

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)