Don’t make a noise! They _______on a physics problem now.
#41516
A
will work
B
are working
C
worked
D
have worked
推荐题目
Frank，you look worried．Anything wrong?Well，I ______a test and I’m waiting for the result．
#39019
A
will take
B
took
C
am taking
D
take
While she ______ the newspaper, Granny ______ her.
#39657
A
read; was telephoning
B
is reading; telephoned
C
was reading; telephoned
D
read; telephone
--Be quiet! The children ____________ now. --Oh, sorry.
#42391
A
sleep
B
slept
C
were sleeping
D
are sleeping
— Have you _______ read this story before? — Yes. I’ve _______ read it.
#41743
A
already; ever
B
yet; just
C
ever; just
D
ever; never