She always watches her son ________ the road every morning, or she will feel worried.
#48963
A
crossing
B
cross
C
to cross
D
to crossing
推荐题目
---Would you mind ______ next to you? --- ____________.
#49451
A
me to sit; No, you can’t
B
me sitting; Yes, please
C
my sitting; No, of course not.
D
me sit; All right.
John does important research _______ the best ways to help the old.
#48571
A
finds
B
finds
C
found
D
to find out