89. The task is hard, ____, the workers managed to finish it in time.
| A．therefore | B．otherwise | C．however | D．Yet |
Three fourths of the homework _________ today.
| A．has done | B．has been done | C．have done | D．have been done |
I prefer to stay at home _________ go to see a film.
| A．other than | B．more than | C．rather than | D．less than |
A great number of reporters _________ to London to report the 30th Olympic Games.
| A．is invited | B．are invited | C．will invite | D．will be invited |
She finds _____ staying at home.
| A．it bored | B．that boring | C．that bored | D．it boring |
After he had solved the math problem, he _____ to deal with another one.
| A．went on | B．put on | C．gave up | D．put up |