The child should be punished. You shouldn’t let him ________ telling lies

Why don’t you take off your shoes and have them washed? They will soon ______ in the sun. [ ]

By the time the girl comes back to life，scientists probably________a cure for this incurable disease

It is reported that the scientists in our county are______all possible ways to control H1N1 flu.

My classmates and I are working much _______ than before, because we’ll take an important exam soon.