I was on the point of going to bed ________ Mr. Zhang rang.

Jerry was very excited to see the playground ________ she used to play football ________ with lots of snow. 

______ is well known to everyone, I should say, is that a man becomes learned by asking questions.

A man cannot smile like a child，________ a child smiles with his eyes，while a man smiles with his lips alone.

-- Will you lend your MP4 player to Jack?-- Yes, ________ he promises to return it on time.