There is no doubt that fresh air and good food ___ our health.[ ]

Thanks a lot for your book. I found it veryinteresting.—- _______. I’m glad you enjoyed it.

Kangkang likes playing _____ guitar, but Jane likes to play _____ basketball.

Why is he feeling down today?—Because the suggestion he________has been turned down.

To keep healthy, Mr. Smith_______ cyclingas a regular form of exercise after he retired.