Do you _________ or serve in an organization or are you a member of some group?
#12567
A
simplify
B
require
C
sign
D
volunteer
推荐题目
It is reported that the floods have left about _______ people homeless.
#14481
A
two thousand
B
two-thousands
C
two thousands
D
two thousands of
The doctor told me to take the medicine_____.
#12998
A
every fourth hours
B
each fourth hour
C
each four hours
D
every four hours