___you choose , you must stand by your decision .
| A．Wherever | B．Whenever | C．However | D．Whichever |
Jenny was _________ to hear the news that their team didn’t win the game.
| A．cast aside | B．cast away | C．cast off | D．cast down |
----Will you go home tomorrow evening?
----No, I’m going to a lecture, or at least I’ m planning _________.
| A．to | B．so | C．that | D．it |
My parents have promised to come to see me before I _________ for Africa.
| A．have left | B．leave | C．left | D．will leave |
Charles Babbage is generally considered to _______ the first computer.
| A．to invent | B．inventing | C．to have invented | D．having invented |
----I have got a headache.
---- No wonder. You ________ in front of that computer too long.
| A．work | B．are working | C．worked | D．have been working |