问题补充:
What public is concerned about is whether medical workers and scientists will be able to find for this new disease in a short time.
A. 不填;不填
B. 不填;the
C. the;不填
D. the;a
答案:
A. 不填;不填
B. 不填;the
C. the;不填
(答案→)D. the;a
解析: the public公众,cure表“治疗方法”时,可数。