To their disappointment, the couple _______ the house but couldn’t find the missing ring, which was to bring them into great trouble.

All the citizens are taking actions to protect the environment，so our city is on the way_____ a clean and beautiful city.

Though the little boy is often made ＿＿＿by his brother, he made his brother ＿＿＿yesterday.

We should say ____ to second-hand smoke.

It is not how much money you will give usbut that you are present at the ceremony reallymatters