(2014·成都市重点中学联考)She can’t help________the house because she’s busy making a cake in the kitchen.
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A
to clean 
B
cleaning
C
cleaned 
D
being cleaning
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Many people thought little of me, but I did what _____.
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A
I thought I was right
B
I thought it was right
C
I thought was right
D
I was thought right
Mr. Lin ______ when I go to see him on Sundays. 
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A
is always working
B
was always working
C
always worked
D
has always worked
They could have attended the awarding ceremony,but their flight      due to the bad weather.
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A
was delayed
B
had been delayed
C
has delayed
D
was delaying
I suppose that when I come back in two year’s time all these old houses will ____ down.
#103098
A
have pulled
B
be pulling
C
have been pulled
D
be pulled