问题

Yang Liwei is the first man ________ the moon.
A:to step
B:step
C:stepping
D:steps
B:step
C:stepping
D:steps
正确答案是:
同类题型
d him 300 yuan for the sneakers.— Oh, he charged you too much.You _____ them with half the money.
______ good advice the teacher gave me!
The law required that everyone ________ his car checked at least once a year.
What do you think of the person?—Seldom in all my life________ such a _________ person.