Where are your parents? — They ____ Shanghai. They will be back in two days.

China a lot in the ten years.

This math problem is ________difficult for such a boy ______work out.[ ]

Which do you like better, beef noodles or tofu noodles?— I ______ beef noodles to tofu noodles. I used to have them for breakfast.

is your cousin?—Twelve . [ ]