The doctor was busy _________ on the woman at that time.
A. operating B. operated C. to operate
Chinese _________ by Miss Wang three years ago.
A. taught B. was taught C. is taught
Where is my raincoat? I think _________ has taken it.
A. someone else
B. who else
C. anyone else
The ___________ prevented me from _________ part in the meeting.
A. sick; take
B. illness; taking
C. sickness; to take
WHO (世界卫生组织) report says that __________ world vision’s efforts, more than 16,000,000 patients can see again.
A. because B. as if C. because of
Science is developing fast. Scientists and doctors will surely find a way to _________ AIDS some day.
A. treat B. cure C. operate
