—Is Mr. Smith really ill ? —________.He’s in hospital.
—Could I invite my friends to my birthday party?—Sorry, you ______.
Our math teacher is very kind ______ he looks very serious.
This isn’t my sister’s skirt. ______ is blue.
Now the air in our city is ______ than it used to be. Something must be done to stop it.
This type of MP5 is so expensive that I can’t ______ it.