---- Isn’t it hard to drive downtown to work?
---- Yes, that’s why I ____ to work by train.
| A．have been going | B．have gone | C．was going | D．will have gone |
The boy was curious about how the waste paper was into a model kite.
| A．improved | B．united | C．transformed | D．mixed |
Not unti his fellows criticized him _______ to admit his mistake.
| A．does he begin | B．did he begin | C．began he | D．had he begun |
After taking part in several rounds of competition, the athlete won first prize.
| A．eventually | B．occasionally | C．frequently | D．usually |
He is in deep sorrow, so it is not a(n) time to mention the subject.
| A．evident | B．typical | C．appropriate | D．wonderful |
He bought his girlfriend diamond ring, but he was told that diamond in that ring was an imitation glass.
| A．a; the | B．a; / | C．the; a | D．/; the |