-Are these your parents ? - _____ .
| A．Yes, they are. | B．No, they are. |
| C．Sorry. | D．Yes, they aren’t. |
Speak louder, please. I can’t ________ you.
A. see B. hear C. write
—How long may I keep the book?
—You ________ keep it for two weeks.
A. may B. must C. will
The flowers smell ______.
A. well B. badly C. good
Mrs. Smith has _____ son and a daughter.
A. a B. an C. the
Bob is _________ than John.
A. tall B. taller C. tallest