Therobbertoldhimthathehadbetterkeepsilent
問題詳情：
The robber told him that he had better keep silent ______ he wanted to get into trouble.
A. if B. in case C. otherwise D. unless
【回答】
D知識點：連詞
題型：選擇題
問題詳情：
The robber told him that he had better keep silent ______ he wanted to get into trouble.
A. if B. in case C. otherwise D. unless
【回答】
D知識點：連詞
題型：選擇題
