The reason why he was late is ______ he got up too late.

Our teacher wants us to be ______ when we talk with the foreigners.—Yes, we should believe in ourselves.

Tom wants to know_____________. — I don’t know, either. He said he would phone me as soon as he came back.

The reason ________ he was late for the meeting was _______ his car had broken down on the road.

Jim works hard on his Chinese and .[ ]