---- Where is mother? ---- She is in the kitchen. She ______ the housework all morning.
#102189
A
was doing
B
has done
C
has been doing
D
is doing
推荐题目
Jenny _____ continually _____ unexpected questions. We were tired of her.
#100274
A
has; asked
B
was; asking
C
had; asked
D
will; ask
Seeing the road ________ with snow, they had to stay at home, watching TV and drinking coffee.
#103051
A
blocking
B
blocked
C
to block
D
to be blocked
— Mum, I really think Dad should have a break and get relaxed.—Yes. He_________ too long.
#99932
A
read
B
had read
C
has been reading
D
is reading
35．—Sorry for having kept you waiting ．But for the traffic jam,I________20 minutes earlier．—Never mind．I haven’t been waiting that long．
#103888
A
arrived
B
would arrive
C
would have arrived
D
had arrived
The students _______ busily when Miss Brown went to get a book she _______ in the office.
#103023
A
had written; left
B
were writing; has left
C
had written; had left
D
were writing; had left