The girl spent as much time as she ____ her lessons.
| A．could going over | B．could go over |
| C．went them over | D．went over |
—You haven’t returned my chemistry textbook yet.—I know, but I ________ it for five days.
| A．will have been looking for |
B．have been looking for |
C．will be looking for |
D．had looked for |
David left word with my secretary ________ he would call on me in the afternoon.
| A．who | B．that | C．where | D．which |
Why do you turn off the light in the room? We are in total ______ now and I can’t see anything.
| A．silence | B．darkness | C．progress | D．charge |
You’re our manager, so ______ or not you’ll attend today’s meeting is very important.
| A．/ | B． what | C．if | D．whether |
I wonder why you failed so many of the questions. Only the first question was difficult, but the rest, I thought, ______ very easy.
| A．is | B．are |
C．was | D．were |