—Why didn’t you come to my birthday party last night? —I planned to, but my parents simply not let me out so late at night.
You may use the room as you like ___ you clean it up afterwards.
John plays basketball well, ___his favorite sport is badminton.
Mr.Smith was_________ to be a doctor but he became a teacher when he grew up.
I’m sorry I can’t go to the film with you because I have a lot of things to _________.
Children’s brains can’t develop properly_______ they lack protein(蛋白质).