35．The highest award was given to Anna, who_________so hard on the project for years, and at last her efforts paid off

We’ll have to race _____ the clock to complete thework on time.

Don’t you know your computer has been inflected with viruses? — Really？No wonder it hasn’t_______ as properly as before.

By the time he got up, I ______ for two hours in thefactory.

Eric nearly always wins the science award.That’s because his projects are ___.