Last summer I took a course on ．A.how to make dressesB.how dresses be madeC.how
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Last summer I took a course on ________．
A.how to make dresses
B.how dresses be made
C.how to be made dresses
D.how dresses to be made
试题答案
A
解析：此处为带有特殊疑问句的动词不定式。