She is often seen ______ the old woman.  
#50014
A
help
B
helping
C
to help
D
help to
推荐题目
There is a bird        in the sky.
#50711
A
fly
B
flying
C
flies
D
to fly
The book is very difficult. ________ read something easier?
#49670
A
Why don’t
B
Why not
C
Why you not
D
Why not you
He thinks playing computer games ________.
#50076
A
frustrated
B
frustrating
C
frustrate
D
to frustrate
I prefer ____________ shopping to ____________ at home.
#49532
A
to go; staying
B
going; stay
C
going; staying
D
go; to stay
We don’t have enough pens       , Give us       .
#50110
A
to write; much more
B
to write with; a few more
C
writing with; few more
D
writing; another two