1. Sorry to keep you waiting. I__ (not, to be) long. I__ (to find) some

cloth bags to take to market with us. 2. According to my survey, ten pupils in our class__ (to trade) items of different kinds with other people in our community. 3. It's getting colder. __I__(to turn up) the heat or__you__(to put on) warmer clothes instead? 4. In 50 years' time, most people__(probebly ride) bicycles to work. 5. My family__(to use) only compact fluorescent bulbs this year. 6. Look! They__(to air-dry) their clothes. Thus, they can save some electricity. What a great example to follow