I lost my way in complete darkness and ,______ matters worse , it began to rain .
| A．made | B．having made | C．making | D．to make |
_______MP4 and see if you can find out what is wrong with it.
| A．Pack up | B．Break down |
| C．Dig out | D．Take apart |
There were beautiful clothes________in the shop windows.
| A．spread | B．displayed |
| C．exposed | D．located |
_______you study hard，you’ll succeed in time.
| A．As far as | B．As long as |
| C．As good as | D．As well as |
He tried his best to solve the problem，________difficult it was.
| A．however | B．no matter |
| C．whatever | D．although |
Measures have been taken to prevent the river from____．
| A．having polluted | B．being polluting |
| C．being polluted | D．to pollute |