were known as “aborigines”, _____ “the first people of the country”.

i_____a secretary for five years inthe company, and now he is the general manager of it.

The English boy can _____ funny stories _____ Chinese.

Is there a vaccine _____ pig influenza?, I’m anxious to know—– Don’t worry, there is a vaccine _____ for pigs against pig influenza

Through so muchtrouble，he learned ________everyone needed friendship and ________self confidence is important.