We are short energy and water the overpopulation.A. of; be
题型：同步题难度：来源：
| We are short energy and water the overpopulation. |
A. of; because
B. of; because of
C. in; because
D. in; because of |
答案
举一反三
| Our rain forests are , so we should protect them. |
A. dangerous
B. in danger
C. invisible
D. in safety |
—How did you get there yesterday?
— ________. |
| [ ] |
A. Take a taxi
B. By walking
C. On a car
D. I walked there |
| We were late for class the heavy rain. |
A. because
B. because of
C. so |
| the teacher"s help, I can"t work it out so easily. |
A. With
B. Without
C. On
D. No |
| The students go to school _______ every day. |
A. by bike
B. by their bike
C. by bikes
D. on bike |
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