<span>
C
D
B
D
B
c
b
a
a
d
<span>B </span>
A
D
C
a
b
c
d
c
b
a
c
c
c
c
c
c
d
<span /></span>
A
1.to live
2.to cancel
3.watching
4.to play
5.helping
6.driving
7.to come
8.to take
9.to see
10.studying
11.learning
B
to live
to work
traveling
to pick
to shop
worrying
to buy
to have
walking
to learn
convincing
to see, to stop