Why don’t you eat more, Lily?—Sorry, mum. I can hardly eat _________. I am not feeling well today.

What ______ the noise, Bill?—Sorry, I broke my glass.

In his lecture, the professor referred to the belief, in contrast to all other countries, ______the elderly are wise, ______is particularly dominant in the Chinese culture．

Jack is _________boy of the twins.

Whose backpack is this?— It be Mary’s. She is looking for hers.