The camera is too expensive ________.

– This dress was last year’s style.– I think it still looks perfect ________ it has gone out of fashion this year.

I really enjoyed your lecture, ______ there were some parts I didn’t quite understand. 

—Why didn’t Betty come to school yesterday?—_________ she was ill. 

A: ________ will we know the results of the test?B: In a week, I suppose.