Hurry up, Mike. You must get to the airport an hour before the plane _____.

A．gets off           B．turns off          C．takes off          D．puts off

 Hurry up, ____    you will miss the plane.

A. and   B. but C. so D. or

By the time he arrived at the airport, the plane            .

A. has taken off     B. was taking off    C. would take off  D. had taken off

He ________ the airport too late, so he didn't catch the plane.

1. A.
   got to
2. B.
   arrived to
3. C.
   reach
4. D.
   left