—Do you know ________ she went to the movie last night?—On foot.A. when B. why C. how
—Let’s go dancing tonight.!—Sorry, I ________.I have to go to my guitar lesson. A. mustn’t B. needn’t C. 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