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The problem is         difficult for me        work out.
#51005
A
very; to
B
enough; to
C
so; that
D
too; to
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I think your advice is of great value to me and it’s worth      .
#48659
A
to take
B
taking
C
to give
D
giving
Would you mind _________ the piano softly ?
#50945
A
to play
B
playing
C
played
D
play
They decided              to the mountain.
#49735
A
hiking
B
on hike
C
to hike
D
not hiking
It’s important __________ fire.
#50876
A
to care
B
be careful
C
to be careful
D
to be careful with
When shopping, keep your eyes ______for those energy-saving machines.
#49678
A
opened
B
open
C
to open
D
to be open