题目内容
--- Have you finished all your homework?
--- Of course. I ______ it before I went out to play football.
A. had finished B. have finished
C. finished D. was finishing
A
【解析】
试题分析：句意：你已经完成你所有的作业了吗？当然，在我出去踢足球之前我就已经完成了。根据句意可知完成作业在踢足球之前，及发生在过去的过去，故用过去完成时态，故选A。
考点：考查过去完成时态的用法。
王后雄学案教材完全解读系列答案
海淀课时新作业金榜卷系列答案Penguins are lovely seabirds. They have wings but they cannot fly. They wear a black or blue-gray coat, and they have a white belly, and a pair of short legs. There are eighteen kinds of them. We must look at their heads and necks to tell one kind from another. Some of them have strange-looking hair on their head. When these seabirds walk on land, they are slow. Yet, when they are in the water, they become excellent swimmers! Most of them live in places covered by snow and ice year – round, but some are in warmer areas.
1. Which part of the penguin’s body is white?
A. The head. B. The neck.
C. The leg. D. The belly.
2.How many kinds of Penguins are there?
A. 16. B. 17. C. 18. D. 19.
3.Where do most of the penguins live?
A. In warm areas. B. In cold areas.
C. In the sea. D. On land
