I have lost one of my gloves. I ______ it somewhere.

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问题 I have lost one of my gloves. I ______ it somewhere.

选项 A、must drop
B、must have dropped
C、must be dropping
D、must have been dropped

答案B

解析 从第一句来看,“我”的手套已经丢失,那么情态动词应该选择must,动词drop应该用一般过去时。综合这两方面的考虑,我们填入空白处的应该是must have dropped,表示对过去事实的肯定性推测。
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