Some research workers completely allthose facts as though they never existed.

Only by practicing a lot _____ our English well enoughto communicate with foreigners.

Though most people know that smoking __________ the risk of cancer, it is still hard for them to give it up. [ ]

ms of character teaching, storytelling is one ofthe best ways to____your points _____ , especially to young kids.

All the task ____ ahead of time, they decided to go on holiday for a week.