— Tom, you should be polite and let our grandpa get          the car first.— OK. And I will open the door for him.
#52225
A
over
B
into
C
away
D
off
推荐题目
Did you see them ____ basketball this morning? 
#57146
A
playing
B
were playing
C
to play
D
are playing
It is convenient for people to work by subway. It’s said that The Line 4 subway in Chengdu _______by the time of 2018.
#55379
A
will be built
B
would be built
C
will have been built
D
would have been built