She was elected to ______ secretary of the local party.
A. service with
B. service as
C. serve as
D. serve for
查看答案
Aunt Mary ______ to clean up the kitchen.
A. volunteered
B. volunteer
C. will
D. voluntary
Further information is ______ on request.
A. available
B. availability
C. get
D. free
I'm afraid I will have no chance to ______ the coming contest.
A. join
B. take part on
C. participate on
D. participate in
His doctor had told him to ____ himself ____ surgery.
A. prepare … in…
B. prepare … to…
C. prepare … for…
D. prepare … with…
微信支付 
支付宝支付