In our life, we can work hard on one task _______, and then another. In this way, all your dreams can be realized.
| A．at a time | B．on time | C．at the time | D．all the time |
—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 |
His hobby is ________ watching TV ________ playing the piano．It’s reading books．
| A．either；or | B．both；and | C．neither；nor | D．not only；but also |
Now the air in our city is _______ than it used to be．Something must be done to stop it．
| A．very good | B．much better | C．rather bad | D．even worse |
—Excuse me，I want to buy some milk．Where can I find a supermarket?
—Oh，I know ________ not far from my home．
| A．it | B．that | C．one | D．its |
—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 |