在下列各句的空白处填入一个适当的词,使句子意思完整,语法正确。
1. My daughter bought a new _________ of shoes for me.
2. I haven't _________ your letter yet. When did you send it?
3. I don't like having classes on Saturday. Me __________.
4. The traffic is busy at that time. You'd better be careful to _________ the street.
5. It is better to keep your voice down in _________ places.
1. pair 2. received 3. neither 4. cross 5. public