56. It is impossible for so workers to do so work in a single day.
She’s the student ________ handwriting is the best in my class.
I said hello to her with a smile in the yard, but she ________ me.
Before the earthquake, mice ran out of the fields ________ for places to hide.
He asked me ________ I had read the book written by Anne Frank.
— May I smoke here?— No, you ________. Can’t you read the sign “NO SMOKING”?