there be句型的过去式 — 英语词汇题
题目
用 there be 的正确形式填空(注意时态):1. Long long ago, there ______ (be) a small river behind the village. 2. Now there ______ (be) many tall buildings in our city. 3. There ______ (not be) any computers in the classroom twenty years ago, but now there ______ (be) one on the teacher's desk.