Joe Jim may go with you because one of them must clean the room at home.
I wonder _______next month.
I don't know _______ he will come tomorrow. ________ he comes, I'll tell you.
Icouldn't ____ these new words because I had no dictionary.
— It's dangerous to swim in this river.—Yes, you are right. The government has ___ people not to swim in it.
There are ___ floors in the building and my home is on the ____ floor.