Mrs Turner told me that she ______ to many cities across China when she was young. 
#63804
A
had been
B
has been
C
went
D
would have gone
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They__________on the program for almost one week before I joined them, and now we ________on it as no good results have come out so far.
#63797
A
had been working; are still working
B
had worked; were still working
C
have been working; have worked
D
have worked; are still working
 By the time Jack returned home from England,his son ________ from college.(2011·辽宁)
#63809
A
graduated
B
has graduated
C
had been graduating
D
had graduated