题目
A、difficult to obtain
B、it difficult to obtain
C、that difficult obtaining
D、it difficult to be obtained
第1题
A.found
B.were found
C.have been found
D.will be found
第2题
The United Nations ___ in 1945.
A、was found
B、was founded
C、were founded
D、were found
第3题
A.will; found
B.would; be found
C.is; found
D.had; been found
第4题
A.found it possible
B.found possibility
C.found it being possible
D.found possible
第5题
A.finding
B.to be found
C.to find
D.found
第7题
A.have found
B.will be finding
C.wi1l have found
D.are finding
第8题
The lost bell is found in the parents' bedroom.()
第9题
A.has found
B.has been found
C.have found
D.find
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