--- what color is your ruler ? --- _________ .A. It’s a blue B. It’s blue. C. It’s blue hat.
You will find a________answer after reading the story.
I found________difficult for them to get there on time.
Your English book is on the floor.Please________.
Susan used to________to school,but she is used to________to school now.
I think every student should go to school________,but some of them are always late.