He is too old to run_____ to catch up with the young boy.

Liu Wei is ______armless young man .But he plays ____piano very well with his feet .–Yes ,He realized his dream in ‘China’s Got Talent ’and recently he played “LiangZhu”at a concert in Vienna.

We don’t know __________ he can make a plane by himself. It is amazing.

Has everything _____ can be done ______?

Dad, must I finish my homework today?——No, you . You may do it tomorrow.