◎◎◎ mortgage ⪢⪢
A _____ is a loan for property, especially homes and businesses.
http://qindex.info/i.php?x=12240

◎◎◎ behave ⪢⪢
To _____ is to act in a particular way, especially to be good.
http://qindex.info/i.php?x=13672

○○○ burgeoning ⪢⪢
The need for palm oil has led to the creation of large plantations, especially in Southeast Asia. The group Amnesty International says the burgeoning demand is causing labor rights abuses on many plantations.
http://qindex.info/i.php?x=7106

○○○ frequency ⪢⪢
The _____ of rainstorms is very high, especially during the spring.
http://qindex.info/i.php?x=16273

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