问题补充:
There is no doubt one day the medicine for AIDS will be made.
A. that
B. whether
C. if
D. so
答案:
(答案→)A. that
B. whether
C. if
D. so
解析:考查句型there is no doubt that …。毫无疑问总有一天治疗艾滋病的药会制出来。 选A
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