—Lisa, what do you think of the job of being a nurse?—In my opinion, it ____ be difficult sometimes though it seems easy.
--Have you found the information about famous peopleyou can use for the report? --Not yet. I’ll search some on the Internet.
Things are ____ on the moon ____ on the earth .
We need friends to ________, or we will feel ________.
Could you tell me_____?
The_______ you are in the exam, the_______ mistakes you will make.