How long is it ________________ we last had a picnic together?
| A．until | B．before | C．that | D．Since |
Only then did she realise how much damage __________.
| A．had caused |
| B．had been caused |
| C．caused |
| D．was caused |
I was held up for about half an hour in the traffic jam，__________ the delay.
| A．it caused |
| B．thus causing |
| C．caused |
| D．to cause |
Millions of pounds' worth of damage __________ by a storm which swept across the north of England.
| A．has been caused |
| B．had been caused |
| C．will be caused |
| D．will have been caused |
A terrible earthquake struck Ya'an in Sichuan Province，__________ a lot of deaths and damage.
| A．caused |
| B．causing |
| C．having caused |
| D．to cause |
-I don't know how to deal with my son. He always refuses __________ advice I give him.
-He just wants to show he has grown up, maybe.
| A．no matter what |
| B．whatever |
| C．no matter which |
| D．whichever |