— Mr Li looks often looks tired and worried? — So he does. You see it’s not easy to           such a big factory.
#52692
A
sell
B
win
C
get
D
run
推荐题目
 Stop _____ so much noise! My father is sleeping.
#63393
A
to make
B
making
C
to hear
D
hearing
I noticed them __________the bus ten minutes ago.
#53845
A
get off
B
to get off
C
getting off
D
got off
-Please ____ who broke the window.
#59855
A
look for
B
see
C
find out
D
find