她正在做什么?如何表达:A.What is he doing ?B.What is she doing?
_______ people are there in your family?A.How B.How much C.How many
I see two big ______ in the dog’s mouth.
Would you like to play _______ piano?the B.a C.an
Sometimes I go to school ________ bike.
“Who brought the gifts? ” Li Ming asks ___________.