Thanks for listening to my problem and giving me your advice, Amy.—______. That’s what friends are for.

Stephen Hawking, ________ “the greatest genius of the late 20th century”, announced that there are really grey holes in the universe.

What a nice watch! It must be expensive.—Not at all. You can only fifty yuan on it.

She would say she was kept very busy, ____ she meant to refuse his invitation to dinner．

5. — Do you know why Jane was so angry— Her roommate gave in to _________ and opened the letter addressed to her.