My headache _________ me．I thought it was going away, but it’s getting worse and worse．
| A．killed | B．kills | C．is killing | D．was killing |
To tell you the truth, I have a hard time remembering all the ______ rules of English grammar.
| A．interesting | B．confusing |
C．exciting | D．surprising |
—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 |