It was ____ that she couldn’t finish it by herself.
| A．so difficult a work | B．such a difficult work |
| C．so difficult work | D．such difficult work |
He is the only one of the students who _____elected.
| A．are | B．have | C．has | D．is |
Many a man _____ come to help us.
| A．have | B．has | C．is | D．are |
The Olympic Games ____held every ____years.
| A．is； four | B．are； four | C．is； five | D．are； five |
Where ____rubbish， there are flies.
| A．there are | B．there is | C．is | D．there h |
Your trousers ____dirty， you must have _____washed.
| A．is； it | B．are； it | C．are； them | D．is； them |