The factory used 65 percent of the raw materials, the rest of which _____ saved for other purposes.
A. is B. are C. was D. were
There’s nothing more important than good health, _______?
A. is there B. isn’t it C. isn’t there D. is it
To Daniel’s parents’ surprise, the living room was clean and tidy, with the window ______and fresh air ______in.
A. open; coming B. to open; coming C. open; come D. opened; came
William spends too much time in Internet cafes, ________he either plays games or chats on the internet.
A. that B. where C. which D. whose
Eric felt the bag brought back by his parents, curious to know what it .
A. collected B. contained C. included D. saved
Family fights are the things _______I feel upset.
A. about which B. of which C. in which D. on which
