_____ of the land in that district _______ covered with trees and grass.
| A．Two fifth; is | B．Two fifth; are | C．Two fifths; is | D．Two fifths; are |
If I ever decided to quit, then nothing my parents or my coaches_____ say_____ change my mind. It's my life, not theirs.
| A．could; would | B．could; should |
| C．would; must | D．would; should |
His failure in the experiment suggested that he _______ his teacher’s proper instructions.
| A．should not have followed | B．should not follow |
| C．mustn’t have followed | D．hadn’t followed |
— The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
— Oh, dear ! She ______ a lot of difficulties !
| A．may go through | B．might go through |
| C．ought to have gone through | D．must have gone through |
The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.
| A．should | B．must | C．will | D．can |
— Shall I give you a ride as you live so far away ?
— Thank you. _______.
| A．It couldn’t be better | B．Of course you can |
| C．If you like | D．It’s up to you |