8._______it took 200 years to move from the steam engine to the Internet,there could be major development in _______ are now considered frontiers(尖端) of science in just the past few ten years.( )
A. | When,which | B. | While,which | C. | While,what | D. | When,that |
7.Seeing his mother seemed uninterested in the story and _______she remained _______with her cellphone,he chose to massage her back.( )
A. | /,occupied | B. | that,occupying | ||
C. | /,to be occupied | D. | that,occupied |
6._______ are playing an important part is well known to us all.( )
A. | That who | B. | Those who | C. | Who that | D. | Who |
5._______about the hero's love story,most teenagers are interested in the novel _______the Second World War.( )
A. | Concerned,concerned | B. | Concerning,concerning | ||
C. | Concerned,concerning | D. | Concerning,concerned |
4.The teacher told us to remain silent unless _______.( )
A. | to be asked | B. | asked | C. | being asked | D. | you asked |
3.---What does the model plane look like?
---Well,the wings of the plane are ______ its body.( )
---Well,the wings of the plane are ______ its body.( )
A. | twice as longer as | B. | twice longer the length of | ||
C. | more than twice the length of | D. | twice than the length of |
20.Great news came _____ the missing child had been found by a dust man.( )
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A. | which | B. | that | C. | where | D. | as |