___ _? —It’s hard to say. If there were no examinations, I should have a much happier time at school.

Who’s that boy reading in the garden? Is it David?— It ____________ be David. I saw him in the classroom just now．

Please give the two books _____ the little boy.[ ]

I always go to sleep _____the light on because I amafraid of the dark when I am alone in a place. [ ]

_______ do you read English books?- Three or four times a week.