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C. of, by
D. from, by ( )2 They _________ day and night. A. are made work
B. are made to work C. made to be worked
D. are making to work ( )3. What _________ the forest in China in the last 10 years A. has happened to B. was happened
C. has happened at
D. has been happened to ( )4. Marry bridges _________ over the river since liberation. A. are built
B. have built
C. built
D. have been built ( )5. The radio says a wild animal zoo will _________ in our city. A. be building B. build C. be built D. built ( )6. We can't use the bridge now, because it _________ . A. has been repaired
B. is repairing
C. is repaired
D. is being repaired ( )7. Many high buildings _________ in our city since I came here. A. have been built
B. have built
C. has been built
D. has built ( )8. If
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