Many countries have            a lot of rockets into space. 
#58741
A
sent
B
spent
C
flown
D
made
推荐题目
These words that we should pay attention to         on the blackboard.
#53568
A
being written
B
are writing
C
are written
D
writing
Dr. Ma used to __________in a hospital.
#59261
A
work
B
works
C
worked
D
working
—You look tired. What’s the matter?—I cared for my sick daughter all day.
#51916
A
cared about
B
look after
C
took care of
D
helped out