根据对话内容，用适当的句子补全对话，使对话意思完整，每空一句。
A：Hello，may I speak to Bruce，please?
B：
(76)．I’ll see
if he is in．
(A few minutes later)
C：Hello!Bruce here．
A：Hello, Bruce! This is Bill speaking．It’s Sunday tomorrow．
What are you going to do?
C：
(77)．Do you
have any ideas?
A：I hear many old inventions will be shown in the
science museum tomorrow．
(78)?
C：Good idea．
(79)?
A：Let’s meet outside the school gate at half past eight
in the morning．
C：How shall we go there?
A：
(80)．
C：Sorry，my bike is broken．Let’s go by bus，OK?
A：All right．See you!
C：See you!
