So sudden __________ that the enemy had no time to escape.
| A．did the attack |
| B．the attack did |
| C．was the attack |
| D．the attack was |
You’ll have to wait for one more week, ______ the manager will be back from his trip.
| A．before | B．when | C．as | D．until |
We finally bought several books by Shakespeare, ______ is one.
| A．which of them | B．which of whose | C．of which this | D．and of them |
Without facts , a person can’t form a correct opinion , for he needs to have actual knowledge _____ his thinking .
| A．which to be based on | B．on which to base |
| C．which to be based | D．which to base |
The famous star got injured before her concent , ________ made her fans worried .
| A．who | B．that | C．what | D．which |
The small mountain village____we spent our holiday last month lies in___ is now part of Hubei .
| A．which where | B．where, what | C．that , which | D．when , which |