She understood what I was talking about，________it was the first time we had spoken together.
| A．whether | B．even though |
| C．as though | D．since |
If we had taken such effective measures much earlier, the river________so seriously now.
| A．is not polluted | B．would not be polluted |
| C．had not been polluted | D．would not have been polluted |
Thousands of Haitians cheered as the Chinese medical team arrived，many of________ even
cried with joy.
| A．those | B．them | C．whom | D．who |
—Our women athletes achieved great success in the Vancouver Olympic Winter Games．
—Yes. No one could perform ________, I think．
| A．well | B．better | C．best | D．the best |
A few days after the interview, I received a letter________me admission to the university.
| A．offering | B．offered | C．having offered | D．to be offered |
—Why didn’t you come to the cinema with us last Saturday?
—Oh，sorry．But I________ the film．
| A．see | B．saw | C．have seen | D．had seen |