About Passage 3 Question 25，which choice should be selected？
A. It helps through contributions received.
B. It helps through volunteer’s involvement.
C. It helps in the selling of daffodils.
D. It helps setting up supplies.
查看答案
_______a nurse, she knew how to take care of a patient.
A. Been
Being
C. To be
D. Be
_______twice, he didn't want to try again.
A. Failed
B. Failing
C. Having failed
D. To fail
_______by the police again, the thief hung his head.
A. Being caught
B. Caught
C. Having caught
D. To be caught
_______the road, be careful.
A. While crossing
B. When cross
Crossed
D. Being crossed
微信支付 
支付宝支付