--Don’t worry.My mother will look after your baby __________. --Thanks a lot.A. careful enough B. enough careful C. carefully enough
—_____ you _____ your homework yet? —Yes, I _____ it ten minutes ago.
It’s necessary for you _____ exercise every day.
—Could you tell me ____? —Sorry, I don’t know.
The Greens _____ China for seven years.
Nobody knew ______.