I like to visit Gaochun Museum ________ Sunday afternoon because I can learn a lot from it.

______ fast did John run ______ I could hardly catch him.

Do you know how this disabled man succeeded in running such a big company— I don’t know , but I think he __________ many difficulties.

____, I got better and returned to work.

The teachers often tell their pupils _____ across the road when the traffic light is red.