With the rapid development of medical science, we ______ more new drugs used in the treatment of cancer.

Our English teacher Ms. White told us in her class _____ we should do something to stop water pollution at present in our city.

How clean and tidy your bedroom is!”–Thank you. It ____ every day.

Justin eat outside, but now he making meals at home.

More and more college graduates, the survey shows, feel it hard to find a satisfactory job.