—Is Mary         friend?—No,       isn’t.

--Who’s your Chinese teacher?--Miss Zhang. She has taught ______ Chinese for two years.

－ I need something for cutting the paper.－ Oh, you want a knife? OK, I’ll get ______ for you.

—Is the woman a teacher? —Yes. She teaches ________ English. 

---Mum, ______ is my friend, Kate.---Nice to meet you.