Ⅰ. 选词填空
however, but, although, though, while
1. Free though these online classes are, many students can’t take them.
2. —Would you like to come to dinner tonight?
—I’d like to, but I’m too busy.
3. She thought I was talking about her daughter, however, in fact, I was talking about my daughter.
4. Although/Though it was not safe to stay in the house, they didn’t move at all.
5. He wants to study abroad, while his brother wants to stay and earn some money in their hometown.
6. They still had their sport meet while it was raining all day yesterday.
7. People like to put their mobile phones beside their heads at night, but some scientists think it can be harmful to humans.
8. He knows so many difficulties are in front of him. He will not, however, give up.
9. It was very hot in China, while Australians have the coldest days this time every year.
10. Some people always send rude messages online. However, rudeness is never acceptable.
