People have learned a lot from
studies．
| A．science | B．scientific |
| C．scientist | D．sightseeing |
We needn’t hurry all the way to the airport — the flight has been because of the bad weather.
| A．put on | B．put off | C．put away | D．put up |
— What happened?
— The owner changed his mind and refused his house.
| A．sell | B．sold | C．selling | D．to sell |
— I think saving water is more important than recycling paper in our daily life.
— I disagree. Recycling paper is saving water.
| A．the same as | B．so important as |
| C．as important as | D．the most important |
it rained heavily this morning, nobody in our class missed the lesson.
| A．Even though | B．Until | C．Ever since | D．Because |
— What’s Lisa’s opinion?
— Sorry, I don’t know. I haven’t got her reply .
| A．so far | B．at times | C．some day | D．the other day |