---How often are the Olympic Games held? ---_____four years.
#49404
A
Every
B
Each
C
In
D
For
推荐题目
It’s nice ___________ the doctor to devote all the time he has _______ for the patients.
#47061
A
of; to care
B
for; to care
C
for; to caring
D
of; to caring
When I ride my bicycle, I usually get off and walk _______ the street.
#49474
A
round
B
across
C
through
D
over
