Everybody in the class must give in______exercise books within the given time.

 Is there_______ about animals on the Internet?

 --- How do you find your new classmates?----Most of them are kind, but _______ is so good to me as Bruce.

They like ___ better than mine.

—Do you think playing cards is beneficial to our study?—No，if ________，it can help us kill time when we have nothing to do.