--- Why do you often take exercise? --- _____ me keep fit.
---Can I _____your bike?----With pleasure. But you mustn’t _______it to others.
----What can I do for you? ----I want _____ iPad for my daughter. She needs______.
--- _____ our teacher? ---She’s OK, now.
—Who ________ a pet in your class?—Many students ________.
—Are those your CDs? —No, ________ aren’t.