When he saw Jane fall down on the ice, he couldn’t help _____.
A. laugh
B. laughs
C. to laugh
D. laughing
查看答案
She is amazed that people still risk _____ without insurance.
A. to travel
B. travel
C. traveling
D. traveled
She refused _____ that there was a problem.
A. to accept
B. accepting
C. accept
D. accepted
The three men were caught when they tried to avoid _____ for speeding.
A. fining
B. being fined
C. to be fined
D. to fine
He was walking along the street. He stopped. He took a picture. (stop/take)