Wheat production _______________30% in the past ten years.
| A．has been increased to |
| B．have been increased to |
| C．has been increased by |
| D．have been increased by |
More and more people are used to shopping online because it costs _______money and saves _______time.
| A．more; less | B．more; fewer |
| C．fewer; more | D．less; more |
Volunteering is becoming more and more popular in the world because it gives us a/an __________ to value (珍惜) what you have, and focus on the truly important things in our life.
| A．chance | B．excuse | C．turn | D．promise |
--Let me help you carry _________suitcase, Miss Green!
--No, thanks. It’s ___________ empty suitcase. It’s very light.
| A．a; a | B．the; an | C．a; the | D．/; an |
--- Excuse me, can I visit you this afternoon?
--- Maybe you can. Let me check .
| A．whether I will be free |
| B．when will I have time |
| C．what time will Linda come |
| D．what does my mother come back |
That’s the girl _____ spirit is spread the whole area.
| A．whom | B．whose | C．who | D．that |