The computer was used in teaching. As a result, not only__________, but students became more interested in the lessons.
A. saved was teachers’ energy B. was teachers’ energy saved
C. teachers’ energy was saved D. was saved teachers’ energy
The children all turned ____ the famous actress as she entered the classroom.
A. looked at B. to look at
C. to looking at D. look at
Edward, you play so well. But I ______ you played the piano.
A. didn’t know B. hadn’t known
C. don’t know D. haven’t known
She brought with her three friends, none of ______ I had ever met before.
A. them B. who C. whom D. these
I tried phoning her office, but I couldn’t _______.
A. get along B. get on C. get to D. get through
His sister left home in 1998, and _______since.
A. had not been heard of B. has not been heard of
C. had not heard of D. has not heard of
