If you ____ your money ____ mine, we will have enough to buy one more set of stamps to ____our collection.
| A．join; in; add | B．add; to; add to | C．put; to; add up | D．add; in; add up to |
It was believed that things would get worse, but ____ it is they are getting better.
| A．before | B．after | C．because | D．as |
—What field will your son go into after graduation from Nanjing University?
—I’m not quite certain, but he ____ a good teacher of English.
| A．promises | B．becomes | C．makes | D．proves |
The students spent as much time getting trained as they ____ studying.
| A．disliked | B．were | C．had | D．did |
$100 a month could hardly ____ the cost of his life in such a big city in this country.
| A．spend | B．take | C．cover | D．meet |
This problem may lead to more serious ones if ____ unsolved.
| A．making | B．remained | C．keeping | D．left |