We shouldn’t spent our money testing so many people, most of _____are healthy

Encourage your children to try new things but try not to ______them too hard.

.He suffered from a serious illness last year and I don’t know whether he is_____or dead now.

  _____ , you need to give all you have and try your best. 

.The World Health Organization gave a warning to the public without any ______when the virus of H1N1 hit Mexico in April, 2009.