题目内容
It seems you have been feeling depressed recently. Is it because your failure in the examination is still __________?
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__________ measurement is the key to producing interchangeable parts and mass producing goods.
She says that the goods and services provided by nature — like clean air, rain or __________ soils — should not be taken for granted.
You can count on David for help in case of difficulty. He’ll be __________ willing to help.
Thomas had to pool money from his allowance and from doing __________ jobs around the neighborhood to purchase his plane ticket.
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