Professor Wooden makes roughly $1,000 every week, and 60 percent of _________ is spent on books
A. which B. them C. it D. what
We needed a new cupboard for the kitchen, so Bob made ____ from some wood we had.
A. it B. one C. himself D. another
John has tried many ways to solve the physics problems, but works.
A．little B．anything C．none D．nothing
Medical care in the country cannot compare with big cities.
A．one of B．that of C．不填 D．the one of
Your MP4 is quite cheap. Where did you buy _________? I want to buy _________, too.
A. one; one B. it; it C. it; one D. one; it
I had to buy _________ these books because I didn’t know which one was the best.
A. both B. none C. neither D. all
