一、用 that/if/whether 填空
1. The TV news reported heavy snow would come this weekend.
2. I want to know the store is open on Sundays.
3. They are worried about they can arrive on time.
4. I realize there are so many differences between different cultures.
5. My mother doubts we can finish the housework before dinner.

1. that
2. if/whether
3. whether
4. that
5. if/whether

二、按要求完成句子
1. Mary says, “I will go to visit the Great Wall.”（改为间接引语）
Mary says will go to visit the Great Wall.
2. Betty asks me, “Can I go there with you?”（改为间接引语）
Betty asks me can go there with me.
3. I think he can keep himself away from danger.（改为否定句）
I think he keep himself away from danger.
4. 老师向全班解释过光比声音传播得快。（汉译英）
The teacher explained to the class light faster than sound.
5. 她告诉我她整个下午都在学习法语语法。（汉译英）
She told me French grammar all afternoon.

1. that she
2. whether/if she
3. don't; can
4. that; travels
5. that she was studying