题目

. The place ________ the bridge is supposed to be built should be________the cross-river traffic is the heaviest. A. which; where                            B. where; which     C. where; where                                 D. which; which 答案：CAt first I________confidence to try it，but now I’m beginning to get the idea.And my marks haveimproved. [     ]A．missed  B．lackedC．ordered  D．left