—Every day, my mother tries to spare some time to chat with me ______ she is very tired after a wholeday’s hard work.—How great she is!
When I was in the USA,I had difficulty ______ English, so I often ask Paul ____ help.
The river is too wide for the swimmers _______________.
I don’t know ______ with this problem. It’s too hard.
The notebook ___________ be John's .There is his name on it.
_____you go, ____you do in your school, You must obey the rules.