—Why was he late for school?
— ________his bike was broken on the road.

—Why was he late for school yesterday?

— He overslept. By the time he got to the bus stop, the bus ________ already ______.

A. has; left                  B. had; left                 C. was; leaving                   D. have; left

 —Why was he late for school?

— ________his bike was broken on the road.

A．Since                                B．Because

C．As                                   D．Because of

—Why was he late?

—_____ he got up late.