根据句意, 用括号内所给动词的适当形式填空。 1. His father has decided _________ (go) to Su zhou. 2. Understanding the passage well first is the best way _________ (recite) it. 3. It's difficult for such a young child _________ (work) out the problem. 4. Why do you suggest _________ (visit) the museum? 5. Mr Green en joyed _________ (play) soccer when he was young.