Listen! Do you hear someone _________ for help?
______________should be paid to our study,and only in this way ________make progress.
This machine is very easy . Anybody can learn to use it in a few minutes.
Don’t handle the vase as if it _________ made of steel.
In order to find the missing child, the villagers___________ all they can in the past five hours.
With a lot of problems _________,the manager felt like a cat on hot bricks.