They usually spend two hours _______ their homework every day.A. do B doing C to do
—________ hard work it is!—Yes, but he seems _____ to do it.
I like Chinese _______ my brother likes maths.
—How long have you lived here?—Since I _________.
We bought some _________ my cousin as __________.
—Is your father in ?—No, he _______ for three days.