Our city is becoming nicer. Look! There are many trees and flowers on _______ sides of the streets.
A. all B. each C. both
—Where is your Chinese teacher?
—He’s ______the meeting room.
| A．on | B．of | C．to | D．in |
—Who is that lovely girl?
—______ is my sister.
| A．She | B．Her | C．He | D．His |
—Excuse me, can you tell me ________?
—Sorry, I’m a stranger here.
| A．where is the post office |
| B．where the post office is |
| C．how can I get to the post office |
| D．where can I find the post office |
—Have you found the book ________ you lost yesterday?
—Yes. I left it in the library.
| A．that | B．who | C．where | D．when |
Hurry up! The plane will ________ at six o’clock.
| A．put off | B．take off | C．get off | D．turn off |