Don’t take the lift in a fire because the lift __________ become trapped between floors.
A．mustB．mayC．wouldD．should
B
考查情態(tài)動(dòng)詞。句意“發(fā)生火災(zāi)時(shí)，不要乘坐電梯，因?yàn)殡娞菘赡軙?huì)停在樓層之間。”表示不大可能出現(xiàn)的可能性，用may，意為“也許”。故選B。
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