My father ______ my mother when they were both 26 years old, and they have ______ for 15 years.
My friend has the same haircut _______I do.
I think you should _______ some money _______ your friends.
He doesn’t have any money, _______ do I.
Some scientists think that it may take _________years to make robots look like people, and do the same things as us. A. hundreds of B. two hundreds of C. two hundreds
--Will there be fewer trees? --_______________.