问题补充：
----I have tried very hard to find a solution to the problem, but in vain
----why not consult with Frank? You see, .
A. great minds think alike
B. two heads are better than one
C. a bird in the hand is worth two in the bush
D. it’s better to think twice before doing something
答案：
A. great minds think alike
(答案→)B. two heads are better than one
C. a bird in the hand is worth two in the bush
D. it’s better to think twice before doing something
解析：可联系答.案.网客服索取。
