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
We’re looking forward to_____ the famous science museum tomorrow.
#49605
A
build
B
visit
C
building
D
visiting
A great number of students said they were forced to practice the piano.
#50807
A
to question
B
to be questioned
C
questioned
D
Questioning
---What should I do, doctor?---_____healthy, you should take more exercise.
#48538
A
Keep
B
Keeping
C
To keep
D
Having kept