Cycling is highly __________ to people’s health and the environment.

The way ________ the problem sounds reasonable[ ]

mpany used 50 percent of the raw materials, therest of which __________ sent to other cities to help the factories there.

In the past half-century, average incomes _______ quickly in developed countries, yet happiness levels have remained almost the same

I’ll go to Hong Kong for a trip next weekend. — Great! _______