In front of our house ________ we used to swim.
| A．a river lies that | B．does a river lie where |
| C．lies a river which | D．lies a river where |
I was out of town at the time, so I don’t know exactly how it _______.
| A．was happening | B．happened | C．happens | D．has happened |
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 |
Occasions are quite rare ____ I have the time to spend a day with my kids.
| A．who | B．which | C．why | D．when |
_____ was most important to her, she told me, was her family.
| A．It | B．This | C．What | D．As |
He didn’t make ______clear when and where the meeting would be held?
| A．this | B．that | C．it | D．these |