What happened _______ Jim? He looks really upset.
—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