The president was deeply _______ the issue and ordered the officials to find out a solution as quickly as possible.
| A．delighted at | B．fed up with | C．concerned about | D．pleased with |
You ______ be hungry already — you had lunch only two hours ago!
| A．wouldn’t | B．can’t | C．mustn’t | D．needn’t |
The old tower must be saved, _______ the cost.
| A．however | B．whatever | C．whichever | D．wherever |
The book was written in 1946, ____the education system has witnessed great changes .
| A．when | B．during which | C．since then | D．since when |
---- It is demanded that the letter ___by the end of this week , dad !
----I’ll do it immediately .
| A．should mail | B．was mailed | C．mailed | D．be mailed |
Please remain ______; the winner of the prize will be announced soon.
| A．seating | B．seated | C．to seat | D．to be seated |