Jack wasn't saying anything, but the teacher smiled at him ________ he had done something very clever.(2011·湖南)
She let the children ______ to play instead of staying at home all the time.
_____ the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.
My uncle has given up _________. He looks very healthy now.
Whenever he meets difficulties, he always takes a positive _________ towards them.
---The weather report says the fine weather is _____ in a day or two. ---We’d better get in our corn before that.