The time he has devoted in the past ten years ________the disabled is now considered _______of great value.
#92960
A
to help; being
B
help; to be
C
to helping; to be
D
helping; being
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I’m so glad to see you back, Lucy. How long _______at your grandma’s?
#93838
A
had you stayed
B
did you stay
C
have you stayed
D
would you stay
I haven’t seen her ____ the time ____ she had the accident.
#94977
A
for; that
B
since; when
C
since; as
D
for; when
—Why are the tax collectors so busy?  —Many people prefer to have their tax forms completed by a professional rather than ___. 
#94782
A
do it themselves
B
doing it themselves
C
to do it themselves
D
done by themselves