017.
I've just come back from a trip to the USA. During the trip, I visited New York, where I stayed for three days. Unlike the usual fine weather, it was cold, rainy and windy day when I went to the site where the twin towers had been standing, and where new construction work was going on. The New Yorkers were very friendly and helpful. They were willing to answer my questions about the September 11 terrorism attack on the World Trade Center. Since the site was fenced with wire nets, visitors were not allowed to get in. I was lucky that an old couple offered to take me to a nearby high building. Through the big windows on a higher floor, I could see the big hole in the ground and people working down there. It's said that various designs have been collected and are being discussed to replace the emptiness.

答案解析：
(1) 正確答案為B。根據(jù)it was cold, rainy and windy day 那天很冷，而且下雨刮風(fēng)。可知，說話者去雙子塔的那天很冷，而且刮風(fēng)下雨，因此B項正確。
(2) 正確答案為A。The New Yorkers were very friendly and helpful. 紐約人非常友好，而且樂于助人。可知，紐約人樂于幫助別人，因此A項正確。
(3) 正確答案為C。根據(jù)new construction work was going on 正在進行新的建設(shè)工作。可知，雙子塔正在進行建設(shè)，將會呈現(xiàn)不同的面貌，因此C項正確。