We should protect the environment, for plenty of fresh air ________ to good health.
--Do you want to go to the cimema with me? ---I don't feel like ___.
When did China __ the first man-made satellite to circle the earth, do you know?
Stand there! I'll __ you.
___ the help of his teacher, he has passed the English exam.
The children ___ not to play football in the street.