1. 用方框内所给词的适当形式完成下列句子（有一项多余）

keep    finish   make   look forward to    possible   luck

1. （1） I'm happy to know you'll come to Zunyi and meeting you at the airport.
3. （2） Some middle school students don't know how a balance(平衡) between study and play.
5. （3） Millie spends about two hours her homework every day.
7. （4） Most people think thirteen is a(n) number in America.
9. （5） It is for me to climb such a high mountain in half an hour.