--- Do you know ______ boy over there?--- Yes, he likes playing _____ basketball very much.
—Let’s go dancing tonight.! —Sorry, I ________.I have to go to my guitar lesson. A. mustn’t B. needn’tC. can’t
Listen! Someone _________ for help! A. called B. is calling C. has called
I am going to make ________special house for my pet pig this weekend. A. an B. a C. the
Healthy food and exercise help ________to study better. A. us B. we C. our
________is dangerous for us to swim in the river alone. A. It B. That C. This