--- It’s the fourth time that heavy smog(雾霾) has hit the city this month.--- It’s high time we _______ measures to fight air pollution.
—Jack, this is the third time that you have been late this week. —Sorry, sir, but I was ________ for 15 minutes on the way here in the traffic jam.
Robert has rich work experience, so it will ________ for his lack of academic knowledge.
All her hard work ________ in the end, and she finally passed the exam.
—What's the matter with John? He has been sitting there for hours. —A postcard from his father ________ an attack of homesickness in him.
Look before you leap! Why not ________ the advantages against the risks before you start?