I’m afraid we        give you an answer today．

—Why didn’t Susan come to school? —I don’t know. She____ ill.

—This wall of air is an effective answer to the problem  and it ____ work.  —But it is a question to put such a wall of air around the statue. 

But for your timely help, the boy ______ his life.

--- Do you know Uncle Tom is crazy about gardening?---Sure. He ____ his flowers in the garden now.