The students are doing the cleaning in their classroom. Some are cleaning the windows and the doors, _______ are sweeping the floor.

— _____ do you surf the Internet, Kate?       — Not often, twice a month.

Jim and Bob are my good _________.They are very _______ to me.

Miss Read is good _____music. She can be good ______ children in the music club. 

Shanghai is larger than ___________in Jiangsu.