------Do you know the woman who is looking____ over a patient? ------ Yes. She is one of the best ____ in our hospital.

— What do you usually do on your ________?— I usually play games and type my homework.

If you want to send a letter, you can go to the ____.

 —Mum, 1 am hungry. May 1 have some______?—Of course. But don't eat too much.

The two cities have reached an ______ to develop science and technology.