从A、B、C、D四个选项中，选出可以填人空白处的最佳选项。
1．—Could I ask you some personal questions?
—
A．Yes，don’t worry． B．Sure，go ahead．
C．Yes，help yourself． D．Sure，why not?
2．It was dark and he had already lost his of direction．
A．thought B．feeling C．idea D．sense
3．—Have you heard that earthquake struck Japan on March 11，2011?
—Yes．It came as shock to us．
A．the；the B．the；a C．an；a D．an；the
