高中英语必修一《MODULE5 A Lesson in a Lab》Section A 同步练习题（2）
题组二
1. A substance is pure if it is unmixed with ______.
A. the other substances B. other substances
C. the other substance D. others substance
2. It ______ to us whether you will join us in the game.
A. will matter B. is matter
C. is mattered D. will be mattered
3. There are usually at least two ______ of looking at every question.
A. means B. directions
C. views D. ways
4. In my opinion, life in the twenty-first century is much easier than ______.
A. that used to be B. it is used to
C. It was used to D. it used to be
5. As the twentieth century came to a close, the raw materials for a great national literature were at hand, waiting ______.
A. to use B. to be used
