After a knock at the door, the child heard his mother’s voice ______ him.
A. calling B. called C. being called D. to call
Pop music is such an important part of society ______ it has even influenced our language.
A. as B. that C. which D. where
The little boy came riding full speed down the motorway on his bicycle. ______ it was!
A. What a dangerous scene B. What dangerous a scene
C. How a dangerous scene D. How dangerous the scene
--- How was the televised debate last night?
--- Super! Rarely ______ so much media attention.
A. a debate attracted B. did a debate attract
C. a debate did attract D. attracted a debate
With the help of high technology, more and more new substances ______ in the past years.
A. discovered B. have discovered
C. had been discovered D. have been discovered
--- Guess what! I have got A for my term paper.
--- Great! You ______ read widely and put a lot of work into it.
A. must B. should C. must have D. should have
