By the time he got up, I ______ for two hours in the factory.
#100958
A
have worked
B
worked
C
was working
D
had been working
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His silence at the meeting suggested that he _______ to your plan. 
#99792
A
hadn’t agreed
B
didn’t agree
C
wouldn’t agree
D
not agree
Listen to the two girls by the window. What language ________? 
#100338
A
did they speak
B
were they speaking
C
have they been speaking
D
are they speaking