—Could I use your computer, Dad?
—Sorry, you _______. I'm going to work on it.
A：wouldn't
B：can't
C：needn't
D：don't have to
The Eiffel Towel, a cultural icon of France, was completed at the end of the ____ (nineteen) century.
— I didn't see you yesterday.
— ______ I was ill yesterday, ______ I didn't go to work.
