【Cassidy Tung】評論
I cannot find my wallet. It ________ have been stolen when I was in the night market. (A)must 必定(語氣最強)(B)should (應該)(C)can (可以)(D)would (將要)
【Cheng Yi-ru】評論
對過去合理的推測:must have +p.p.
【柚子(已上榜110高普人事】評論
這一題牽涉到 這些助動詞可以表示說話者對...