( ) All the apples _____ fell down were eaten by the pigs.
I go to school by ________. A.plane B.bus C.spaceship
That knife is__________. I can’t cut the bread. A.hard B.blunt C.sharp
—__________ this. How does it feel? —It’s rough. A.Smell B.Touch C.Taste
What ________ May and Tom doing? A.is B.am C.are
__________ sheep are fat. A.This B.They C.These