---We have red and yellow T-shirts. Which color do you like?---I’m afraid _______. I think blue will be OK.   

I’ve just read an excellent book of Moyan’s, ___________ you cannot afford to miss.

____ do you think is the cleverest student in our grade.

I get the bicycle for _____.My friend gave it to me when she bought a new one.

Everyone______that computer is helpful.