题目内容
| The earth will become worse and worse ______ we do something to stop her from being polluted. |
A. if B. even if C. when D. unless |
试题答案
D
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The earth will become worse and worse ________ we do something to stop her from being polluted.
A. if?????????? B. even if???????? C. when?????????????? D. unless
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The earth will become worse and worse ________ we do something to stop her from being polluted.
| A．if | B．even if | C．when | D．unless |
The earth will become worse and worse ______ we do something to stop her from being polluted.
[ ]
A. if
B. even if
C. when
D. unless
查看习题详情和答案>>
B. even if
C. when
D. unless
The earth will become worse and worse ________ we do something to stop her from being polluted.
| A．if | B．even if | C．when | D．unless |