It rains very heavily in this area, which has _______ annual rainfall of 7,000 mm, _______
ideal environment for forests.
| A．the; an | B．an; 不填 | C．an; an | D．不填; the |
I arrived home at midnight, _______ my parents had been waiting for nearly three hours.
| A．at that time | B．by that time | C．at which time | D．by which time |
--- It’s wrong of a student to follow ______ his teacher says.
--- It’s true. I can’t agree ______.
| A．no matter what ; too much | B．whatever ;much |
| C．no matter what; more | D．whatever; more |
The teacher set such a difficult problem ________none of us could solve.
| A．that | B．so that | C．which | D．as |
If we want ______much cleaner world, we should reduce _______ emission of carbon dioxide.
| A．a; a | B．a; / | C．a; the | D．the; / |
This morning my mother told me _____ she would attend a wedding party _____ she wouldn’t come back home for lunch.
| A．that; and that | B．that; and | C．/; and | D．/; / |