题目内容
The tiger is likely to come to attack our sheep, so we must ________ it.
- A.keep an eye on
- B.have an eye for
- C.keep an eye out for
- D.be careful of
C
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The tiger, once a ____ animal to humans, is now ____of disappearing on the earth.
| A.dangerous, danger | B.in danger, in danger |
| C.dangerous, in danger | D.danger, in danger |
The tiger, once a animal to humans, is now of disappearing on the earth.
| A.dangerous, danger | B.dangerous, in danger |
| C.in danger, in danger | D.danger, in danger |