Be quiet, the head teacher Mr. Gu is coming.— Don’t worry. It _____ be him. Mr. Gu is much fatter.

Who is that woman? –She is ______ mother.

The guidethe students around Zhang Jian’s Former Residence（张骞故居）last month.

Are you good at playing _______ guitar or _______ basketball?

Just after putting away the dishes, _______.