By pretending to be ill, the candidate tried to run away from _______ issues, which always aroused too much debate.
| A．confidential | B．controversial |
| C．contemporary | D．contradictory |
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 |
166. As we all know, _____ is very famous for its software industry though it is a developing country.
| A．Japan | B．South Korea | C．India | D．Ireland |