— Miss Lin _____ my desk-mate with her lessons when I left school.—She is really a nice teacher.A. helps B. is helping C. was helping
It was very silly ___ you to take in what he said. He is a liar!
He suddenly return ___ a stormy night.
__________! There comes a train!
The car runs ___ a very high speed and directly hits the tree beside the street.
The old man ___ a blue sweater is our new headmaster.