We must act now because time is __________.— Yes. Let’s start.

.To improve your health, you can _________ 25— 30 minutes three or four times a week to do simple things such as walking ,cycling or running .

Who would you rather ______ with the teacher about the problem

The boy felt quite happy because he was closernow to ______ an answer of his own.

Some people do not normally when they are worried.