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 phoned you at six yesterday afternoon, but nobody answered.--- Oh, I __________a walk with my parents near the river.
#37590
A
am taking
B
was taking
C
took
D
will take
All the new books _______ to the poor village next month.
#41578
A
were sent
B
will be send
C
are sent
D
will be sent
The students were excited when they knew they ______ out for a spring out the next month.
#36705
A
went
B
had gone
C
will go
D
would go
If I ten million dollars, I travel around the world.
#42012
A
have ; will
B
had ; will
C
had ; will
D
had ; would
—Where is Jim? —He home since last week.
#37437
A
has left
B
has gone away from
C
left
D
has been away from