The windows must _________ before you leave the room.
| A．be closed | B．are closed | C．close | D．be close |
People were advised _____ in the river because it is very deep.
A. not to swim
B. not swimming
C. to not swim
Michael’s father wants to ____ the best education in the country______ his son.
A. provide, with
B. provide, for
C. provide, to
John didn’t know ____ the medicine.
A. what to take
B. how to take
C. where to eat
This is the question______ we are talking about now.
A. which B. who C. what
There is _____800-meter-long road behind____ hospital.
A. an, an B. an, theC. a, the