I didn’t have to work all weekend — I did it by _______. 

I keep medicines on the top shelf, out of the children’s________.

To our credit         , China overcame all the difficulties caused by the disasters in 2008 and successfully hosted the 29th Olympic Games.

Driven by __________, I asked the interviewee a personal question, which made him quite surprised.

After all the harm she has done,she __________ whatever she gets.