1．—How could you ________ my sister so easily in the crowd?
—Because she stood out in her red dress.
A．pick up B．pick out
C．take up D．take out
答案：B
2．—Did you see the boys yesterday afternoon?
—Yes.I saw them ________ the fence when I passed.
A．climb B．climbed
C．to climb D．climbing
答案：D
