While building a tunnel through the mountain, ________ .
| A．an underground lake was discovered |
| B．there was an underground lake discovered |
| C．a lake was discovered underground |
| D．the workers discovered an underground lake |
A big earthquake broke out in China on May 12，2008, over 70，000
people．
| A．to kill | B．killing | C．killed | D．kills |
People like to make friends with shares their interests．
| A．whom | B．whomever | C．whoever | D．who |
My son came up with the ideathe family get together for a meal every
two weeks．
| A．which | B．that | C．when | D．where |
was most important to her，she told me，was her family．
| A．It | B．This | C．What | D．As |
Although thissound like a simple task，great care is needed．
| A．must | B．may | C．shall | D．should |