Helping others is a habit, _______ you can learn even at an early age.
A. it B. that C. what D. one
Your house is always so neat—how do you ______ it with three children?
A. manage B. serve C. adapt D. construct
Up to now, the program ________ thousands of children who would otherwise have died.
A. would save B. saves
C. had saved D. has saved
The living room is clean and tidy, with a dining table already ______ for a meal to be cooked.
A. laid B. laying C. to lay D. being laid
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
