1. The students are listening ___ their teacher very carefully. 2.——I'm looking forward ____ taking a holiday in Hainan. ——So am I.It's great to be ____ holiday there. 3. Sichuan is one of the largest provinces ____ China. It's ____ the southwest ____ China. 4.——It's necessary ____ you to take exercise ____ the morning. ——I agree ____ you. It's very kind ____ you to give me advice. 5. The moonlight comes in ____ the window and the room seems quiet and peaceful.
