______conscious of my moral obligations as a citizen.[2005]
A.I was and always will be
B.I have to be and always will be
C.I had been and always will be
D.I have been and always will be
第1题
James has just arrived, but I didnt know he ______ until yesterday.[2005]
A.will come
B.was coming
C.had been coming
D.came
请帮忙给出正确答案和分析,谢谢!
第2题
The research requires more money than ______.[2007]
A.have been put in
B.has been put in
C.being put in
D.to be put in
请帮忙给出正确答案和分析,谢谢!
第3题
Mr. White works for a chemical import-export company, but he ______ for this industrial fair, since he is on leave.[1997]
A.has worked
B.works
C.has been working
D.is working
请帮忙给出正确答案和分析,谢谢!
第4题
To his astonishment, he saw a rope ladder ______ out and three men climbing down it.[1995]
A.throwing
B.being thrown
C.having thrown
D.having been thrown
请帮忙给出正确答案和分析,谢谢!
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