After _______, jack hurried to work.
| A．a quick breakfast | B．quick breakfast |
| C．eating quickly breakfast | D．eating quickly the breakfast |
．—Do you think_____ worthwhile to go all the way to Los Angles to buy that computer?
—Well ,I’m going to visit some relatives, too.
| A．it | B．/ | C．this | D．that |
Though we found _____difficult to avoid economic and financial crisis, we must take measures to reduce its negative impact.
| A．it | B．one | C．that | D．how |
—Does_____please you to give gifts to others?
—Sure．
| A．it | B．that | C．one | D．he |
He didn’t make_______clear when and where the meeting would be held.
| A．this | B．that | C．it | D．these |
一When did you learn the news that Obama made a trip to Canada as President?
一_______ was on my return．
| A．That | B．It | C．There | D．This |