Ⅰ. 完成句子，每空一词
1. 因为交通拥挤，今早我又迟到了。
I was late again this morning ______ ______ the heavy traffic.
2. 经过一天的努力，他们终于扑灭了森林大火。
After a day’s hard work,they ______ ______ the forest fire at last.
3. 该动身了，飞机一小时后起飞。
______ time ______ set off,since the plane will take off in an hour.
4. 休息会儿吧。我太累了，不能再走了。
Let’s have a rest. I’m ______ tired ______ walk any farther.
