The school rules state that no child shall be allowed out of the school during the day, ______ accompanied by an adult.
A. once B. when C. if D. unless
Sam _____ some knowledge of the computer just by watching others working on it.
A. brought up B. looked up C. picked up D. set up
Before the sales start, I make a list of ______ my kids will need for the coming season.
A. why B. what C. how D. which
I_______ have watched that movie —it’ll give me horrible dreams.
A. shouldn’t B. needn’t C. couldn’t D. mustn’t
That’s the new machine ______ parts are too small to be seen.
A. that B. which C. whose D. what
I have a lot of readings _____ before the end of this term.
A. completing B. to complete
C. completed D. being completed
