第一部分:英语知识运用(共两节,满分45分)
第一节：语法和词汇知识（共15小题；每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1. Only through _____ talks can we build trust and only through cooperation can we create _____ win-win economic situation.
A. / , a B. the, the C. / , the D. the, a
2. ---- Is this the first time you _____ Changsha?
---- No. But the first time I _____ here, the city wasn’t so beautiful.
A. visited, came B. visited, have come
C. have visited, have come D. have visited, came
