如果你想把你的姐姐介绍给你的朋友,你可以说:A.This is my mother. B.This is my sister. C.This is my brother.
May I ____ some grapes? A. to have B. having C. have
Danny is singing a song ____ my mother. A. to B. for C. across
What would you like _____? A. drink B. to drink C. drinking
Who ____ thirsty? A. am B. is C. are
Danny is writing postcards ____his mother. A. to B. on C. in