--- Have you heard about the sinking of the South Korean Ship ?--- Sure, it _______ the only thing on the news for the past three weeks.
We can broaden our horizons through _________ to new things.
Jack’s house has been broken into twice and now he takes________ against theft at any time.
The environmental organization calls on customers not to purchase these _______ packages of food, clothes and gifts.
People are advised not to smoke at home, since passive smoking is ________ topeople around them. Which is Not proper for the blank?
He stumbled(绊倒)on the _______ ground and fell flat on his face.