My mother ___ a doctor .A.am B. is C. are
It’s more than one hundred meters long.A.How old is it? B.How long is it?C.How high is it?
He was ten years old.A.How old was he?B.How old is he?C.How old are you?
It’s about twenty _______(米)high.
What did you eat? I _______(吃)noodles.
How _______(长)is your classroom?