What has happened to Alice ? — I don’t know. She__________her job.

John has just been promoted to general manager of our company.—_______. He is always devoted to his work.

Most animals and plants are _______ large or sudden changes in temperature, so the ocean is a safe and comfortable habitat.[ ]

My hometown is becoming more and more beautiful with trees and flowers on sides of the road.

The expo is being held inShanghai, _______a lot of advanced technology is shown for the first time.