Up to now, large quantities of food         to Africa to save the starving people.

Rather than ______ on a crowded bus, he always prefers ____　a bicycle

The Chinese government has overcome problems of population and economy to     ________  its “nine years of compulsory education”．

If you don’t get up early, you’ II ____the bus.　　 

—I hear that you will be on travel again.—Yeah. My boss __________ for me to discuss business details with someone from another company.