We should wear special boots __________ us floating away into the space .
#48510
A
to prevent
B
preventing
C
prevent
D
prevented
推荐题目
My brother is always the first_______ to school.
#50435
A
to get
B
getting
C
to reach
D
reaching
Mr Smith told me that he wasn’t used to ___ by plane and he usedto __sick a lot.
#50880
A
travelling; feel
B
travel; feeling
C
travel; feel
D
travelling; feeling
 Good _________ habits help me get good grades.
#49015
A
studying
B
study
C
studies
D
studied