精选优质文档-倾情为你奉上1. You will be successful in your study _ you have confidence.A. before B. once C. until D. though2. _is known to all, the Amber Room belongs to the Russians.A. As B. Which C. That D. What3. With time _ by, he gradually forgot the unhappy experience.A. goes B. goingC. to goD. gone4. Great changes _in my hometown in the past few years. A.have taken place B.have been taken place
