Harry visited the bookstore every week. He became such a _______ customer that the bookseller gave him some books as presents.
A. common B. normal C. usual D. average
Harry visited the bookstore every week. He became such a _______ customer that the bookseller gave him some books as presents.
A. common B. normal C. usual D. average
C
由“Harry visited the bookstore every week”可知，他是常客，含有“习惯，惯例”之意，故选C。