1．The knowledge should be_updated (更新), or we'll fall behind.
2．The organization has launched (着手进行) a campaign to raise $ 150,000.
3．I know the arrival time of the flight but I don't know its departure (启程) time.
4．Everyone began to shout at once and the meeting broke up in disorder (紊乱)．
5．The government calls on the youth to donate (捐献) their blood voluntarily.
6．You can tell when Christmas draws near because the shops are full of decorations (decorate)．
7．It's too much of an_expense (expensive) for me to own a car.
8．Typically (typical), he would come in late and then say that he had to go early.
9．The country has made great progress since independence(independent)．
10. We went to the party with our parents'_approval (approve)．
