trying to carry out the plan, butI failed—Well, you _________, for we wereuncertain it would do ________

It is a tough task, but we are _________ not to shrink(退缩) from it.

China’s player Wang Hao has retired, with the_____ of an Olympic single’s gold medal his only regret.

The teacher ___ the students not to ___ quickly when answering questions.

John will refuse to take part in this activity with Kate she says sorry to him.