Sorry, I have to __________ now. It's time for class.-OK, I'll call back later.
I told him what I was surprised____________ his attitude towards his study.
___________ you've got a chance, you might as well make full use of it.
I've visited a lot of different places and stayed in lots of different hotels, but none of them____________ this one.
The visiting Minister expressed his satisfaction with his talk,__________ that he had enjoyed his stay here.
--Can I help you? --I'd like to buy a present for my father's birthday, ___________ at a proper price but of great use.