--- I rang you at about ten, but there was no reply. --- Oh, that was probably _____ I was seeing the doctor.
Although it is __________ to watch programs on TV sometimes, I think people shouldn't spend most of the time watching it.
-__________ for you? -How about next Friday?
He is one of my students and always come to see me whenever __________.
I Come and see me whenever __________.
-Oh, look! Our school campus is under construction. -Yes. And the large library __________,too.