用括号内所给动词的适当形式填空。
1. At first, the government had great difficulty in _____ (persuade) people to leave their hometown.
2. She suggested _____ (put) the meeting off, for we haven't got fully prepared for it.
3. _____ (compare) the heart to a pump, he helped the children to understand its function.
4. The green bicycle _____ (belong) to the postman. Don't take it away.
5. What he said was so ______ (confuse) that I was _____ (confuse) at his words.