—When will his party begin? —I am not sure. It _ be at 8:00 p.m.
The History Museum is a very famous museum ______ lots of old things.
The baby was born(出生于) ______ a warm morning.
_____ there will be a heavy rain, _____ she takes a raincoat with her.
Please be careful ______ your study ______ now on.
John wants to ___ the Music Club and becomes a new member of it.