当你把你爸爸介绍给Miss Wu时,你应说: ______A. This is Miss Wu. B.Miss Wu, this is my dad. C.He is my dad.
_________ a toy shop over there .
What ________ his classmates _________ now ? A.is , doing B.are , doing C.do , doing
Let’s _______ the song “Good morning”.
My grandpa enjoys _______TV.
Please wait ________ me . A.at B .for C .to