What ________on the chair? A. are B. am C. is
Our teacher always tells us waste water.A. to not B. not to C. not
We should turn the lights when we leave the roomA. on B. off C. in
We shouldn’t cut down trees and waste water.A. too many ; too many B. too many; too much C. too much; too much
I to school when I six.A. come; was B. came ;was C. come; is
We are all very pleased our studies in the school.A. in B. at C. with