题目内容
—Is your uncle an ________?
—Yes, he recently invented ________ useful machine.
A. invent, the
B. inventor, an
C. inventor, a
—Yes, he recently invented ________ useful machine.
A. invent, the
B. inventor, an
C. inventor, a
C
第一句在问人的职业,只能用inventor来表达;第二句中useful的发音不是元音音素开头,所以用a即可。
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