题目内容
________ is the best singer in our school?
- A.Who do you think
- B.Whom do you think
- C.Do you think who
- D.Do you think whom
考查复杂疑问句,即“特殊疑问句+一般疑问句”,who在句中作主语,不能用whom.
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B.Saving the Earth
C.Travelling to Mars
D.A Newly?Found Place
B.Changing.
C.Planting.
D.Building.
B.find out its similarity to earth
C.avoid the dying away of many other species
D.find on Mars livingplace for the increasing humanbeings
B.terraforming Mars is theoretically simple
C.we have had some experience with terraforming our own planet:Earth
D.the development of science and technology is very rapid
B.Negative.
C.Skeptical(怀疑的).
D.Objective.