—What did you do yesterday?—My brother took two friends of ________ to play chess with us. But I don’t’ know _______ of them.
—Jack,do you know ________? —Sorry,I don’t know.
—How can I go to your school? —________.
We can watch football games _______ TV.
I have ________ homework to do in the evening.
Either Tom or Jim _______ at a radio station.