An investigation group _________ five men and two women has been sent to the spot to look into the matter.
Dr. Frank failed many times but he finally _________ to find a successful way to solve the problem.
It is said ______ vegetables and fruits are good to our health, apples and pears _________.
On August 15th, 2012, many people volunteered to Lei Feng Memorial in Fushun, Liaoning Province ___________ this great soldier(1940---1962).
Jack, please do not _______ yourself in that matter, or you will be in great trouble.
Yoga is a kind of _______ activity. It can make people _______.