题目内容：
Directions： Complete each of the following sentences with a suitable word.1. The bus picks______passengers outside the airport.
2. She doesn't like to be seen________ public without her make-up on.
3. On the bus, he gave up his seat______ a pregnant woman.
4. He wants to open his own business, but he needs a push__ it to get him started.
5. Taking public transport can not only help you save___ fares,but also contribute to keeping a cleaner environment.
6. Last year, the trading company saw a greatly increased profit____export.
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