The conference will begin in an hour;_______, let’s have a rest.
________ you are interested in astronomy, you can read the book.
_________ parents say and do has a life-long effect on their children.
It is reported that two schools, ___________ are being built in my hometown, will be open next year.
I can’t find the recorder in the room. It ________ by someone.
The reason ______ he failed was _______ he was too careless