---Where is mother? ---She is in the kitchen. She ___ the dinner for the party the whole afternoon.
#103022
A
is preparing
B
was preparing
C
has preparing
D
has been preparing
推荐题目
My family plans to move into the building that is over there now.
#101483
A
being built
B
building
C
to be built
D
been built
---The window is dirty.---I know. It ______ for ages and I’m considering giving the task to our children.
#100885
A
hasn’t cleaned
B
hasn’t been cleaned
C
wasn’t cleaned
D
didn’t clean
“Your phone number again？ I _____ quite catch it.” “It’s 4331577”
#103702
A
didn’t
B
couldn’t
C
don’t
D
can’t
Computers in offices and homes since 1970s．
#101154
A
have been used
B
had been used
C
was
D
has been used