背对背信用证对中间商有利。
参考答案：对
给下列字加偏旁，组成新字再组词。
方 （ ）兆 （ ）欠 （ ）兑 （ ）
（ ） （ ） （ ） （ ）
I () to go for a walk, but someone called and I couldn't get away.
A. was planning
B. planned
C. had planned
D. would plan
