用括号中所给动词的适当形式填空
1. Don't spend too much time __________(chat) on the Internet.
2. We always have a great time __________(study) English.
3. Our teacher asked us __________(open) the windows.
4. What games __________ they __________(play)? Let's go and have a look.
5. Simon __________(go) to the club last night.
1. chatting 2. studying 3. to open 4. are; playing 5. went