She looks very sad. I want to help her, but I just don’t know ____ to do it.
#54031
A
what
B
when
C
how
D
which
推荐题目
There are lots of restaurants in our town. And most of _____ are clean and cheap.
#52515
A
it
B
they
C
us
D
them
We carefully compared the result of the first experiment with_______ of the second one.
#52739
A
it
B
that
C
the ones
D
this
She looks very sad. I want to help her, but I just don’t know ____ to do it.
#54031
A
what
B
when
C
how
D
which