— Who’s that boy reading in the garden? Is it David?— It ____________ be David. I saw him in the classroom just now.
------- ______________? ------She is slim and beautiful.
Time seems ______ when we are playing computer games.
David often helps Sandy ___ her Maths, he also shares his school things ___ her.
My best friend Jack looks happy, and he always ________ a smile ________ his face.
She is ready to help people ________.