.Now on hand are two tough tasks for the newly-elected Chile(智利) president: one to help the country to recover from the earthquake, and ______ to invite more foreign aid.
__________, glasses can correct most sight defects in healthy eyes.
Is there anything ______?
If he __________, he would have passed the examination.
When we travel in other countries, we have to ________ lots of different customs.
Great changes ___ in the past ten years in China.