—Why are you standing here, Mrs. White ? —I’m waiting for my son, he ________back form school.A. won’t B. hasn’t come C. doesn’t
When the teacher walked into the classroom, the students ____ at once.
He speaks English ____ than any other student in his class.
Liu Xiang is regarded ____ one of the best runners in the world.
____ are you going to be ____ you grow up?
Hi, Jane! I have ____ to tell you.