We can never pay you back for your __________, your ___________ and gift of knowledge.

—There are so many ______ over there. What’s happening?—Let’s go to have a look.

----What language(语言) can you speak?----______.

Many _____ in ______ could hear no better than 65-year-old people, for they like pop music.

— I hear you have to run for half an hour every day.— Right. It is one of the            in my school.