People have planted a great many trees in order to ________ wind and sand in the
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People have planted a great many trees in order to ________ wind and sand in the desert. |
[ ] |
A.hold down B.hold up C.hold back D.hold out |
答案
C |
举一反三
The idea puzzled me so much that I stopped for a few seconds to try to________. |
[ ] |
A. make it out B. make it off C. make it up D. make it over |
Men and women can ________ people from all over the world by sending and receiving electronic mail. |
[ ] |
A.agree with B.communicate with C.communicate to D.write to |
Although lots of people were watching around,none of them ________. |
[ ] |
A.was offered to help B.was offering help C.offered helping D.offered to help |
The man sitting in the front row________and stared at us when we made such much noise. |
[ ] |
A. turned out B. turned round C. turn back D. turned to |
He has left out the most important reason why he________last night. |
[ ] |
A. stayed up B. put up C. picked up D. kept up |
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