This nationwide smog should serve as a reminder to all, indicating a high time that we ______ on what we’ve done to the environment.

Remember to give your parents my regards when you_____home

In order to increase their vote, they _________ another candidate a traitor to the country. [ ]

He didn’t feel a bit nervous when _____.—No. He’d had a lot of time _____ for it after all.

The supermarket next month will be the biggest one in the city.