____ good exercise. [ ]A. Climbing hills isB. Climbing the hill is C. The cl
题型：专项题难度：来源：
| ____ good exercise. |
| [ ] |
A. Climbing hills is
B. Climbing the hill is
C. The climbing hills are
D. The climbing of hills are |
答案
| A |
举一反三
| Either Tom or I ___ to blame. |
| [ ] |
A. to be
B. am
C. are
D. have |
| A new type of car ____ now on show. |
| [ ] |
A. is
B. are
C. has
D. is |
| The first two questions were easy; but the rest of them ____ not. |
| [ ] |
A. was
B. were
C. being
D. to be |
| Twenty dollars ___ enough for the coat. |
| [ ] |
A. is
B. are
C. has
D. have |
| My dictionary as well as the two grammar books ___ still new after being used for years. |
| [ ] |
A. looks
B. look
C. was looked
D. have looked |
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