用适当的短语完成句子。
hear of, drop out of school, look after, look out, go abroad, be different from?
1. His family is very poor,so his parents want him to______.?
2. In order to improve his foreign language, Li Lei______last month.?
3. ______!The car is coming.?
4. Her character is mine.She is______introvert (内向), but I am the opposite.?
5. Do you______Coco, she is a very famous singer.?
6. Please______your grandparents,they are too old.?