—I called you at 4∶00 yesterday afternoon. But there was no answer. Wherewere you?—I in the supermarket.A、am shoppingB、do shoppingC、was shopping
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? --_______________.
Kids won’t go to school. They will study ____home _____computers.