Ten minutes ago,there ________ an eraser,a pen and some books on the desk.A.wasB.wereC.is
The teacher often tells Jim and David _______ too much time _______ computer games.
More than two weeks _______ since the foreign friends came here. A. passed B. has passed C. have passed
— All the students are working hard now. —_______. Because all of them want to go to good colleges.
The English teacher isn't here. She ________ to the office.
The physics teacher said that light _______ much faster than sound.