——Is your name Cindy?—— .A. Yes, I am.B. Yes, it is.C. Yes, I am not.
There is ________work to do and the work is _______ difficult .
--Your English is so good. Can you tell us ________?--At home-school. My father taught me.
Her composition is better than .
Father has had the computer _________. Now it works very well.
we were walking along the river, we heard a cry for help.