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She looks very busy . I want to help her , but I don't know  ___________ .
#50250
A
what to do
B
what to do it
C
how to do
D
why to do
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Bruce often asks me ______ him to play the guitar.
#51176
A
teach
B
to teach
C
taught
D
teaches
Animals don’t like ______ cages.
#50955
A
live in
B
live
C
living in
D
living
The flowers are _______ colorful that we can’t stop ______ photos.
#51300
A
so , taking
B
so , to take
C
such , to take
D
such , taking
These days  my classmates are busy ____ ready for the graduation exam.
#50770
A
to get
B
get
C
getting
D
got
—“Did you have any difficulty in today’s homework?”—“No, in fact I found ________.”
#51219
A
it very easy to do
B
it very easy done
C
it’s very easy to do
D
very easy to do it