Such is human nature that many people don’t value things they possess until they’ve lost them .
Jack _______ yet last night, otherwise he _______ me.
_______ we call the First Aid Centre, the doctors _______ by and by.
Betty’s English is _______ than _______ in the class.
Computer cannot remember who _______; it simply does what _______.
_______ we know, hurricane is _______ to come.