2. 职称英语
  3. My wallet is nowhere to be found. I______when I was on the bus.A、must drop itB、

My wallet is nowhere to be found. I______when I was on the bus.A、must drop itB、

游客2025-03-01  18
问题 My wallet is nowhere to be found. I______when I was on the bus.
选项 A、must drop it
B、should have dropped it
C、must have dropped it
D、had dropped it
答案 C
解析 本题考查情态动词的特殊用法。句意：我的钱包找不到了，肯定是我在坐公交车的时候把它弄丢了。must drop it“一定丢了”，是对现在的猜测；should have dropped it“应该已经丢了”，不符合语境；had dropped it“以前丢了”，是过去完成时，不符合语境：must have dropped it“一定是丢了”，是对过去发生的事情的肯定猜测，符合句意，故本题选C。
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