根据下面的对话中的情景，再每一空中填入一个适当的语句，使语句恢复完整。
A:Hello,Mary.
B: 76_________________________________?
A: Hi,Mary,this is Tom.77_____________________________?
B: I’m reading a book.
A: Do you want to go to the movies?
B: 78_______________________.The book is too boring.
A: 79 _________________________________.
B: Ok.I like watching action movies.80________________?
A: Let’s go at seven o’clock. It begins at seven thirty.
B: Ok.See you then.
A: See you.
