The library needs ______, but it will have to wait until Sunday.
| A．cleaning | B．be cleaned | C．clean | D．being cleaned |
、Martha Berry was named one of _____ women in the United States.
| A．the twelve most important | B．twelve the most important |
| C．the most important twelve | D．the most twelve important |
—What made ber so sad? —______a good chance to go abroad.
| A．Miss | B．Missed | C．Missing | D．Being missed |
—What made ber so sad? —______a good chance to go abroad.
| A．Miss | B．Missed | C．Missing | D．Being missed |
A professor of biology gave a talk to more than 1000 students on elephants living conditions and the dangers _______ them.
| A．face | B．facing | C．faced | D．are facing |
—It has rained for a day. What timely rain!
_____________.
| A．So it is | B．So is it | C．So it has | D．So has it |