根据句意及首字母提示，完成句子。

Listen ! Someone is k________ at the door.

短文填空 先通读下面的短文，掌握其大意，然后根据短文内容和所给首字母，在空格内填入一个适当的词，使短文意思完整。所填单词在题后横线上必须完整写出 (本大题共5分，每空0.5分)

Much meaning can be carried clearly with our eyes, so it is often s________1.that eyes can speak.

Do you have such kind of experience? On a bus, you may look at a stranger, but not too long. And if he finds that he is being looked at, he may feel u________2.. The same is in the daily life. If you are looked at for more than n________3., you will look at yourself up and down, to see if there is anything wrong with you. If nothing goes wrong, you will feel angry w________4.the person who is looking at you that way. Eyes do speak, right?

L________5.too long at someone may seem to be rude. But sometimes things are different. If a man looks at a woman for more than 10 s________6., it may mean that he wishes to attract her a________7., to make her understand that he loves her. While two people are in a conversation, the s________8. will only look at the listener from time to time, in order to make sure that the listener does listen to what he or she is speaking. Lovers will enjoy looking at each other or being looked at for a long time, to show something that w_______9.cannot express.

C________10., eye contact should be done according to the relationship between two people and the place where you stay.

Listen!Who is talking with my mother______the phone?

--Listen! Someone is knocking at the door. Who _____it be?

---It_____be Tom. He phoned to visit me this evening.

A.may;may       B.may;shouldn’t    C.must;can      D. must;may