I met a good friend of mine while I _____ on the street.
A. walks B. walk C. was walking D. an walking
With the help of computers, people will find it easier to keep the traffic smoothly.
A. to run B. run C. running D. ran
To protect the environment， supermarkets don’t ____free plastic bags to shoppers.
A. take B. show C. provide D. carry
She got up early this morning _________ she could catch the first bus.
A. in order to B. so that C. all that D. whether
— Is your father or mother a teachers?
— . My father is a doctor and my mother is an office worker.
A. BothB. EitherC. NeitherD. None
Bruce agreed his plan at last.
A. change B. changes C. to change D. changing
