1、— Either you have made a mistake or he has.
— I _________.
A. have B. made C. am D. was
2、— ________.
— Yes. Two minutes earlier, we could have caught the bus.
A. Miss B. Missed it C. Missing it D. Having missed it
3、The day for the meeting ________, they all left the conference room.
A. was fixed B. fixing C. fixed D. being fixed
