It’s the fourth time that heavy smog has hit the city this month. — It’s high time we _______ measures tofight air pollution.

May I smoke here?— If you ______, choose a seat in the smoking section.[ ]

for making so many mistakes in the exam, she wasin low spirits

The host family went out of ____ way to make us _____ at home.

It was the soldier did at the spot of the accident, not what he said,moved all the citizens of the whole city.