题目内容
从题后的两个选项中选择一个正确答案
Li Lei isn't in the classroom. He ________ be at the library. Let's go and find him. (can, must)
答案:must
解析:
解析:
|
用于肯定句中,表推测。 |
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题目内容
从题后的两个选项中选择一个正确答案
Li Lei isn't in the classroom. He ________ be at the library. Let's go and find him. (can, must)
|
用于肯定句中,表推测。 |