At the age of 29, Dave was a worker, ________ in a small apartment near Boston and ________ what to do about his future. 

Without facts,we cannot form a worthwhile opinion,for we need to have factual knowledge ______ our thinking.

The     look on his face showed that he was greatly     of being left alone in the house.

— O’Neal works hard.— So he does. He is often seen _____ heavily before his teammates have even arrived at practice.   

(2013·陕西西安三校二检)Despite the government's measures to cool the house market, housing demand in China still grew steadily in the second half of 2012，________ a rapid rise in house prices.