People often go skating in ________ winter．
A．/ B．a C．an D．the
．—Has your father finished his report?
—Sorry，I don’t know．He ________ it this morning．
A．was writing B．wrote C．has written D．had written
—Could you please come to the museum with me this afternoon?
—Sorry，I ________．I have to take a piano lesson at 2 pm．
A．couldn’t B．mustn’t C．can’t D．needn’t
—May I listen to the music here，Mr.White?
—Sorry，you’d better ________ it like that．
A．not to do B．not do C．don’t do D．not do to
Usually John ________ to school in his father’s beautiful car．
A．has taken B．is taking C．is taken D．has been taken
—Are you going to help John with his Chinese this evening?
—No，He ________ to England．He will be back next month．
A．returned B．has returned C．returns D．will return
