China has the_______ population in the world.
Who wants ________ a doctor. A. be B. to be C. is
Thursday morning, we visited a farm. A. On B. In C. At
Liu Tao is _________ younger than his twin brother Liu Xiang. A. 15 minutes B. 15 years C. 15 days
________ your sister shorter than you ? A. Is B. Are C. Does
What subject _______ you good _______? A. are, at B. do, in C. are, in