With Halloween approaching, there exists a real concern among parents and teachers __________ trick or treating will become a seriously anti-social activity.
| A．whether | B．what | C．that | D．how |
Last night, before the exam, I went over the lessons_______I couldn’t keep my eyes open to stay awake any longer．
| A．before | B．until | C．unless | D．when |
My father ______ you a lift, even if he didn’t plan to take that way．
| A．must have given | B．might have given |
| C．should have given | D．can’t have given |
______ these models several were exciting, ____ of them exactly right．
| A．Of; none of which | B．Among; none of which |
| C．Of; none of them | D．Among; none of them |
Maybe you have travelled to many parts of the world, but nowhere else _____ striking attractions．
| A．you can see so many | B．can you see such many |
| C．you can see such many | D．can you see many such |
Sometimes I can’t help wondering what’s the matter with Tom．I can’t stand it that he often_____ me and talks with the other students around him．
| A．upsets | B．recognizes | C．concerns | D．ignores |