-Can you tell me how many colours _______ in a rainbow?-Seven.
#71148
A
there are
B
are there
C
they are
D
are they
推荐题目
I really don’t know ______________.
#70234
A
where to travel to
B
how to solve
C
what to do it
D
who to talk to
— Your parents have never learned English, _____?— Yes, they learned a little.
#69280
A
have they
B
haven’t they
C
didn’t they
D
don’t they
—Will you please _______ the flowers?  —Sorry. I won’t. 
#71089
A
pick
B
don’t pick
C
not to pick
D
not pick