問題詳情
19. The teacher is standing_________the class and talking to them about the coming trip..
(A) in
(B) on
(C) in front of
(D) under
(A) in
(B) on
(C) in front of
(D) under
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
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