Michael was late for Mr. Smith’soral class this morning.–____ As far as I know, he never comeslate.

Ted woke up with a ________ and felt for the nightswitch.

Ms Li is strict________her work；however，she is not so strict________her students.[ ]

He has been the computer for two hours, chatting with a boy from Australia

The manager_____ the workers how to improve the program since 9 a.m