选词填空
watch over block one's way cheer up now that break out
1. That car ____________________ , so I couldn't drive my car out of the road.
2. The farmers use specially trained dogs to ____________________ their sheep at night.
3. ____________ you've got a chance*you might as well make full use of it.
4. He had no idea when World War II ____________________ , so he turned to his teacher for help.
5. ________ , dear ! Things won't be as bad as you think. There certainly will be chances for you.