________ you look after it carefully, this coat will keep you warm through the whole winter.
A.If B.Unless C.Before D.After
She is listening to music ________ Peter is doing his homework.
A.after B.before C.while D.unless
Our Chinese teacher didn’t go to bed ______ he finished his work last night.
A.if B.until C.since D.because
Chen Wei isn't at school today________ he is taking part in a robot competition in Shanghai.
A.after B.because C.before D.if
_______they may not succeed, they will try their best
A. Though B. When C. Because D. Unless
Peter likes reading a newspaper________ he is having breakfast.
A. until B. while C. because D. though
