With the development of the Internet, _____ communication will be done by regular mail.[ ]

It was not until the entrance exams were insight that that I had so many books to cover andso many exercises to finish

The teacher told us there ________ only a sun in the world.

All the teachers don’t like Jack, because he is too _____ .

The earthquake last night was really terrible— ______, no people were injured or killed, and they escaped in time