摘要： A. or
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________ a person be breathing but not conscious, it is usually best if he or she not ________ moved．
- A.Could; be
- B.Shall;/
- C.Should; be
- D.Might; to be
A desert is a place ________ is ________ nothing but sand．But a camel can walk in the desert for months without any food or water．
- A.where; almost
- B.there; nearly
- C.where there; almost
- D.that; almost
A new material of which water pipes are made has already ________ steel or iron in industry．
- A.controlled
- B.rebuilt
- C.placed
- D.replaced