---Alice, you look puzzled, Have you understood it?
---No．I _____another problem just now．
| A．l have thought of | B．am thinking of |
| C．had thought of | D．was thinking of |
The traffic accident wouldn’t have happened yesterday,but the driver _________ really careless.
| A．had been | B．is |
| C．were | D．was |
Not only _________ hard but _________ also kind.
| A．does he study;is he | B．does he study;he is |
| C．he studies;he is | D．he studies;is he |
Further efforts have been _________ to rebuild the areas _________ were seriously damaged by the earthquakes and tsunamis at the end of last year,________ were among the deadliest disasters in modern history.
| A．made;that;which | B．had;which;that |
| C．done;where;which | D．provide;where;when |
—Is John coming by train?
—He should,but he _________ not.He likes driving his car.
| A．must | B．can | C．need | D．may |
Culture refers to a group or community _________ we share common expressions that shape the way we understand the world.
| A．with which | B．that | C．which | D．what |