- Must we clean the classroom now?
-_____________.You can clean it after school.( )
Yes,you must
Yes,you can
No,you needn't
No,you mustn't
﹣ Bi Sheng, an ancient Chinese, inventedmovable type printing in the 1040s.
﹣ It was developed in China but served the world.( )
created
discovered
searched
﹣ You are always there for me when I am in trouble.
﹣ That's what a friend should do.( )
in fear
in difficulty
in surprise
﹣ Your English teacher is very humorous.
﹣ Exactly. She is very popular with us.( )
friendly
outgoing
funny
﹣Tom, let's go to play basketball.
﹣ I'd love to. But I have to completemy homework first.( )
check
finish
correct
—The air pollution is terrible. —It will be worse________we take action to protect the environment.