Has Jack solved the difficult math problem?
Not yet. But I believe he_____in a few minutes.( )
A.has worked it outB.will work it out
C.was working it outD.works it out
Have you ever been to America?
No,I have been there.( )
often
never
usually
sometimes
John, don't throw the rubbish on the floor. We should keep the school .
Oh, sorry. I won't do it again.( )
busy
noisy
dirty
clean
Can I help you?
Yes, please. I need a pair of .( )
shoes
T﹣shirt
sweater
bags
What do you want to be when you grow ?
I want to be an engineer.( )
in
to
up
at
I don't know if Mr.White____ watch the soccer game with us next weekend.
I think he will if he ____free.( )
will go; is
will go; will be
goes; is
goes; will be