The last few years ________ many natural disasters around the world, from drought to earthquake.
| A．see | B．are seeing | C．have seen | D．saw |
Look! The man we referred to here.
| A．came |
| B．coming |
| C．is coming |
| D．comes |
The mad man was put in the soft-padded cell lest he himself.
| A．injure |
| B．had injured |
| C．injured |
| D．would injure |
Five minutes earlier, and we the last bus now.
| A．had caught |
| B．should have caught |
| C．could catch |
| D．caught |
cease advertising, prices would be significantly reduced
| A．Were they to |
| B．Could they |
| C．Were they to |
| D．Would they |
He must have had an accident, or he here then.
| A．would have been |
| B．had been |
| C．should be |
| D．could be |