My room gets very cold at night.— _______. [ ]

At the class get-together last night, I could hardly ______ Tom, for he had changed a lot and was no longer what he used to be in high school.

________ the crisis of economy getting more and more serious, the government is searching for ways to improve people’s life.(2013·扬州调研)

Whose tennis racket is this, Linda–Look! Jerry’s name is on it! It _________be his.

_ you call me to say you’re notattending my birthday party, I’ll see you at it.