As is so often pointed out,knowledge is a two-edged sword which can be used____for good or evil
All people,they are old or young, rich or poor, have been trying their best to help those in need since the disaster.
The artist was born poor, poor he remained all his life.
Heas a national hero for winning the first gold medal for his country in the Olympics.
——I can’t find my purse anywhere.——You have lost it while shopping.
to reach them on the phone, we sent an email instead