填空题

His theory turned out to be very (effect) ______ to improve our experiment.

【参考答案】

effective
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填空题
Bill Gates is famous for his Microsoft which is his greatest (achieve)______.
单项选择题
A．She’s an English student.B．She’s interested in music.C．She’s a friend of mine.D．The tall girl with dark hair.
A．She’s an English student.
B．She’s interested in music.
C．She’s a friend of mine.
D．The tall girl with dark hair.
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