.If you want to be thinner and healthier, you’d better eat_______food and take______ exercise.

There are _____ floors in my house and my bedroom is on the _____ floor.

The hunter insisted that he_____ a tiger and that a searching team ______ to hunt for it.

Early settlers_______ their survival _______ hard work and determination to succeed.

I’d like to book a round- tripticket.——Sorry, sir, but there are notickets______ at the moment.