I was about to get on the bus __________my wife phoned me to back home at once

Teenagers their healthbecause they play computer games too much.[ ]

下列各句中，标点符号使用正确的一项是（ ）

When did you go to visit Nanjing —_______________________.

The students shouldn’t only be judged_____ how good their remarks were in the exam.in order to start their own business