___ annoys me is that Kirn never returns the books she borrows on time.
| A．This | B．It | C．What | D．That |
My office wasn't far from Chinatown, ________I found some very good Chinese restaurants．
| A．which | B．whose | C．when | D．where |
_________to the house owner, the designer had a clear idea of what to do．
| A．To talk | B．Talked |
| C．Having talked | D．Being talked |
The food_______in this way keeps fresh．
| A．prepare | B．preparing |
| C．to prepare | D．prepared |
__________most people come here for skiing, there are plenty of other things to do．
| A．Although | B．Once |
| C．Since | D．If |
I'm not sure where my necklace is, but I have a pretty good idea who________it．
| A．take | B．took |
| C．had taken | D．will take |