This is the first time we        a film in the cinema together as a family. 
#92616
A
see
B
had seen
C
saw
D
have seen
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____some doubt among scientists about the cause of cancer.
#92930
A
It exists
B
There exists
C
There is existing
D
It is existing
— Why haven’t you asked her to come here?— She _______ an important experiment when I found her and she _______ it.
#92694
A
had done; didn’t finish
B
was doing; hasn’t finished
C
did; wouldn’t finish
D
did; hadn’t finished