The reason__________ their failure you know is _____they didn't get fully prepared for the experiment.
| A．why.., that | B．that.., why |
| C．for.., that | D．why.., because |
When the Greeks had _____ the Persians, a soldier ran from Marathon to Athens.
| A．won | B．bitten | C．beaten | D．hit |
Uner good treatment, many patients are beginning to _______ and will soon recover．
| A．pick up | B．pick out | C．turn up | D．show up |
Jenny worked hard before the final examination, and it _______ ．She got an A．
A．showed off B．paid off C．put off D．took off
Generally speaking, a middle student _______ his / her family lots of money for education．
| A．spends | B．costs | C．takes | D．pays |
Our teacher is clever, but not good at __________ his ideas to us.
| A．getting across | B．getting over |
| C．getting on | D．getting into |