--- What have you learned from your experience in Japan? --- Well, meeting people from another culture ___ be very difficult.

 You____scold such a pupil who always keeps silent so seriously that You______hurt him.

—Tom, your foreign teacher speaks Chinese fluently!—Oh, she has lived in China for six years, otherwise she _______ such good Chinese.

We ________ such great achievements without your efforts. Thanks a lot.

 If you ________ home without a word, your parents wouldn't be so worried now.