________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 |
Jumping out of ______ airplane at ten thousand feet is quite _______ exciting experience.
| A．/; / | B．/; an | C．an; an | D．the; the |
The company was named Gates Hall ______ a man named James Gates.
| A．in need of | B．in search of | C．with the help of | D．in memory of |
--- Where is Jack? I can’t find him anywhere.
--- He ______ his homework upstairs.
| A．might have done | B．must have done | C．might be doing | D．must do |
She___ taller, but she ate too little.
| A．can grow | B．can have grown | C．could grow | D．could have grown |
I don’t doubt_______what he said is true.
| A．that | B．if | C．which | D．such |