I ‘ ll help you_________.

--- 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. 

There is no doubt ________ Tom is a good clever boy.

4．----You are confident about the job interview, aren’t you? ----       , I’m well prepared and feel I’ve got everything they need.

In our city, citizens have free _____ to the library, which makes it easy for them to read any book they like.