13．About 90 percent of the equipment presented by the administration，as well as the facilities of our own， ______made good use of in teaching．
|
A．have |
B．has |
C．have been |
D．has been |
12．______of the land in that district_____covered withtrees and grass.
A．Two-fifth；is B．Two-fifth；are C Two-fifths；is D Two-fifths；are
11． Nowadays，a large number of women，especially those who conicfromthe countryside，____in the clothing industry"．
A ．is working B．works C．work D worked
8、When and where to go for the on-salary holiday ______ yet.
|
A．are not decided |
B．have not been decided |
|
C．is not being decided |
D．has not been decided |
7、Every possible means ______ to prevent the air pollution, but the sky is still not clear.
|
A．is used |
B．are used |
C．has been used |
D．have been used |
5、E-mail, as well as telephone, ______ an important part in daily communication.
|
A．is playing |
B．have played |
C．are playing |
D．Hoped |
