Don't make the oceans________.A.to dirty B.dirty C.dirtyly
This man _____ this bicycle in 1839 .A.invents B.invent C.invented
This old woman didn’t _____ food.A.has B.have C.had
We went to _____ Great Wall.A.the B.The C./
This boy _____ a gold cup in the competition.A.win B.wins C.won
_____ the monster have two heads?A.does B.Does C.Did