1. 选词填空

work out, act out, in other words, make sense, for instance, at the end of

1. （1） Cars were first used the nineteenth century, and were no faster than a horse.
3. （2） They asked him to leave—, he was fired by the boss.
5. （3） Mike, do you think these math problems are quite difficult to ？
7. （4） Be prepared to the meanings and have your partner guess what you mean.
9. （5） It doesn't to buy the cheapest brand of computer just to save a few dollars.
11. （6） They will be concerned to do the right thing—to dress properly, .