Nuclear energy __________ be really dangerous at times even though it's a nice energy in general.
| A．shall | B．should |
| C．can | D．must |
-- Have you moved into your new house?
-- Not yet. The rooms _______.
| A．are painting | B．have been painted |
| C．are being painted | D．have painted |
Make sure you get enough sleep and don’t make yourself so ______ !
| A．relaxed | B．satisfied |
| C．boring | D．stressed |
This book is __________ I can't read it.
| A．such difficult that | B．so difficulty that |
| C．such difficulty that | D．so difficult that |
Look! It’s getting cloudy. I’m sure it _____.
| A．rains | B．is going to rain |
| C．is raining | D．was raining |
We will go shopping if it____ tomorrow.
| A．don't rain | B．didn't rain |
| C．doesn't rain | D．isn't rain |