Must I turn off the gas after cooking?— Of course You can never be ______ careful with that[ ]

The plan benefits adult education, which helps to raise the development standard of the whole country.

My parents often prevent me ________ computer games on school days.

French president Macron ____an olive branch to“yellow vests”by promising a tax cut.

When the book was first _________, it was immediately well received by readers. [ ]