The government placed _____ on the numbers of foreign cars that could be imported.
| A．limitations | B．restraint | C．requirements | D．restrictions |
171. You should put down your jacket, otherwise both of you will have a quarrel. That will make things worse. The underlined part probably means _____.
| A．wear your jacket | B．take off your jacket | C．not be excited | D．throw away the jacket |
170. So long as you work hard enough, a(an) _____ rod can be ground into a needle. (prov.)
| A．steel | B．stick | C．gold | D．Iron |
169. The people performing all play different _______ and three of them sing, too.
| A．tools | B．musical machines | C．instruments | D．Means |
168. Read the ______ on the box carefully before you take the medicine.
| A．instructions | B．teachings | C．advices | D．interpretation |
167. Which of the following words does not belong to the same category? _____
| A．institute | B．college | C．information desk | D．Institution |