—Kathy and her sister are so alike.—I can’t tell one from ____.
--- Good morning.How much should I pay for these books _________ to Alabama? --- Hm, about ten dollars.
--- May I smoke here? --- If you ________, do it in the smoking section.
--- Haven’t you seen the speed limit sign? Please drive __________! --- Sorry, but I have to.
__________ the global financial crisis, the Chinese government has taken many measures _________ people’s life to deal with it.
--- What has made him upset recently? --- __________ alone to face a troublesome milk case.