Sam has been appointed _______ manager of the engineering department to take ____ place of George.
| A．不填；不填 | B．the : 不填 | C．the; the | D．不填; the |
The telephone ______ three times in the last hour, and each time it _____ for my father.
| A．had rung; was | B．has been ringing; is | C．rang; has been | D．has rung; was |
Much to his surprise，he invited only twenty friends to the dinner，but____ came．
| A．twice as many as | B．as many as twice | C．twice as many | D．twice more than |
Whether ways will be found to help China _______ the current world financial crisis is just _______ worries the public.
| A．prevent ;that | B．survive ;what | C．forbid; that | D．leave ;what |
The bill would ______ workers twelve weeks of unpaid leave for family emergencies.
| A．permit | B．supply | C．admit | D．provide |
______ two exams to worry about, I have to work really hard this weekend.
| A．With | B．Besides | C．As for | D．Because of |