The nature reserve is a good place _______ wildanimals ____ live ___.

Xu Xia and her teammates are _______ the U.S.A. next week.

I gave him a present but he gave me nothing ________

Lily, why are you still here School is over for half an hour.– Because I ______ my task yet. I still need one more hour.

To finish the work on time, we’ll have to work____ hours a day.