The reason _______ he was late was _______ he missed the bus.

A．why, that                              B．why, because

C．that, why                              D．because, why

The reason_________ he was late for work was_________ he didn’t get up early.  

A．for, because       B．which, because     C．why, that          D．for, that

The reason ______he was late was _____he got up late

A．which , because                        B．why , that

C．that, that                              D．why ,because

The reason  _____ he was late for the meeting was ____ his little son fell ill this morning.

The reason _______ he was absent from the meeting is_____ he suffered form a headache.

A. what; because      B. for; that         C. why; that         D. when; because