29．—May I speak to your manager at three o’clock tomorrow afternoon ?

—I’m sorry, He       to Shanghai by then

A．had flown                     B．could have flown

C．will have flown              D．has flown

—“May I speak to your manager at three o’clock tomorrow afternoon?”

—“I’m sorry．He        to Shanghai by then”

A．will have flown       B．had flown       C．can have flown D．has flown