--- Do you know who designed the CD-ROM Around the World in Eight Hours? --- Yes. It ______ by Nancy Jackson.
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A
has designed
B
designed
C
designs
D
was designed
推荐题目
 After school we went to the readingroom to do some reading,only to be told that it ________.(2012·安徽)
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A
was decorated
B
had decorated
C
had been decorating
D
was being decorated
Not only I but also her teacher ___________ China many times.
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A
has gone to
B
went to
C
has been to
D
had been to