12.The gold rabbit had been through many generations before it came to my father.( )
A. | turned down | B. | put down | C. | set down | D. | handed down |
11.Japan's space agency is considering putting a talking robot on the International Space Station to watch the mission astronauts are asleep and monitor their health.( )
A. | after | B. | since | C. | while | D. | unless |
10.How cold it is!We've never had _____ this winter.( )
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A. | the colder day | B. | a cold day | C. | the coldest day | D. | a colder day |