1 . 地上是湿的。昨晚一定下雨了。
The ground is wet. It________ ________ ________last night.

2 . I didn’t hear you call. I________ asleep at that time.（must be，must have been）（选择合适的情态动词填空）

3 . In the past, students and their parents________(肯定) have complained about the limitless amount of homework. （根据汉语提示单词拼写）

5 . —Is Mr Smith in?
—There isn’t any Mr Smith here. You must________(dial) the wrong number. （所给词的适当形式填空）

6 . —I rang your home yesterday. A man answered, but I didn’t recognize the voice.
—Oh, it ________have been my brother, Peter. （用适当的词填空）

7 . It must________________(rain)last night, for the ground is wet. (所给词的适当形式填空)

8 . Paul did a great job in the speech contest. He________________（一定练习过）many times last week. (根据汉语提示完成句子)

9 . We left in a hurry and I must have________(忘了拿钥匙). （根据汉语提示完成句子）

10 . The road is wet. It __________ have rained last night.