I had been working on math for the whole afternoon and the numbers ________ before my eyes.
#100003
A
swim
B
swam
C
swimming
D
had swum
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Jimmy didn’t notice his head teacher entering his bed room. He _____a phone call.
#104055
A
answered
B
has answered
C
was answering
D
is answering
By the time you arrive in London, we ______ in Europe for two weeks. 
#104980
A
shall stay
B
have stayed
C
will have stayed
D
have been staying