.Although it had been______ struggle for him to finish the experiment, he enjoyed the result with________ satisfaction.
| A．the, / | B．a, / | C．a, a | D．/, a |
_____ at the door before you come into the room.
| A．Hit | B．Knock | C．Touch | D．Strike |
I've _____ my things at home.
| A．forget | B．forgotten | C．left | D．lost |
The city's underground _____ more people than the buses.
| A．brings | B．sends | C．fetches | D．carries |
She _____ me to open the door.
| A．posted | B．noticed | C．signed | D．drilled |
Did you get much _____ from your holiday?
| A．honour | B．benefit | C．reward | D．prize |