The scientists ________ on the new medicine for two years. They will succeed in no time.
#38384
A
work
B
are working
C
have worked
D
will work
推荐题目
---I’m sorry to have kept you waiting long. ---Never mind. I ____ here for only a few minutes.
#42613
A
have been
B
have come
C
have arrived
D
waited
Mr. Su _____ in Zhuyuan Middle School since 1998. He regards it his second home.
#38785
A
lives
B
lived
C
has lived
D
will live
What ________ you ________ for this winter holiday? I’m not sure, Maybe I’ll just stay at home. I’ll have a big text after the holiday.
#37386
A
did, do
B
are, doing
C
do, do
D
were, do
— Could you please do some shopping for me, Mary?— Sorry, I ______ my homework.
#42147
A
do
B
am doing
C
have done
D
was doing
—Could you tell me when the new park ________________?—Sorry, I am not sure. Maybe next month.
#36160
A
will hold
B
was held
C
will be held
D
has been held