---Volunteering is getting popular in China.---Indeed. More people are now aware that helping others benefits themselves a lot.
Only after they had discussed the matter for several hours ______a decision.
A recent survey ______that the majority of people are worried about the present high price of apartments in cities.
I ______along the street looking for a place to park when the accident______ .
AIDS is said ______the biggest health challenge to both men and women in that area over the past few years.
Since I have read quite a few English books, I know ______words and phrases, of which the majority______ been found in our textbook.