The rivers will become dirtier and dirtier________ we take action to protect them.
| A．since | B．if | C．until | D．unless |
The food tastes . We all enjoy it .
| A．good; happy | B．good; happily | C．well; happy | D．well; happily |
—It’s sunny in Sanya today. But tomorrow?
— The radio says it’s going to rain. You’d better take an umbrella when you go to Hainan.
| A．what’s the weather in Sanya |
| B．how’s the weather like in Sanya |
| C．what’s the weather like in Sanya |
| D．how the weather is in Sanya |
useful advice he has given us !
| A．What a | B．What | C．How | D．What an |
This book cost her twenty yuan , ?
| A．didn’t it | B．doesn’t it | C．did it | D．does it |
Help others whenever you can you’ll make the world a nicer place to live.
| A．and | B．but | C．or | D．unless |