It has been accepted that all the students ____ put on masks before going to school in case they are infected with flu virus.

Writing out all the invitations by hand was more time-consuming than we______.

John stepped on the stage without hesitation ________ he had been preparing for this moment all his life.

In the small brochure, you can see the latest models of sneakers of different famous brands, _______from 600 to 2,000 dollars[ ]

The knowledge that I had caused him to lose his job made me bitterly ______.[ ]