Young people who have got jobs may realize university lessons can’t be the only preparation for all of the situations____appear in the working world.

Calculations，which are astronomically exact，have been made ________ with the use of computers.

What do you think of their marriage—________, if I were Kate, I would not marry him.

Fifty-four students _____ my class and we are kind-hearted.–Really _______.

Is _______ Qinghai-Tibet Railway plays an importantrole in China’s railway history the topic that you’re coming to