.
The traffic slowed down because of the heavy snow in Yushu county, presenting a new __________ to the recovery from the earthquake.
| A．suffering | B．disaster | C．challenge | D．damage |
—Did you enjoy your journey to the village?
— __________．We had driven more than 3 hours before we found the right way．
| A．Of course | B．Quite a lot | C．Not exactly | D．No problem |
He telephoned to inform me of your birthday．____________，I would have known nothing about it．
| A．However | B．Otherwise | C．Therefore | D．Thus |
Actually，the London Olympic Park is built _____________ there used to be a poor area called East London．
| A．what | B．when | C．where | D．why |
I find that looking after children is a fun and challenging job ___________ you need to be patient and careful．
| A．That | B．which | C．where | D．when |
___________ we can have clean drinking water lies in ___________ effective measures will be taken by the government about water pollution.
| A．Whether；that | B．If；that |
| C．Whether；what | D．If；what |