This young tree could not have been damaged ______accident; I believe it was done _____ purpose.
The president said the report didn’t ______ his new own ideas.
The whole book he wrote_____ three parts, it’s mainly about Ming Dynasty.
.With few people _____ pigs, the price of pork______..
Evidence has been piled up ____ specific speech sounds are recognized by babies as young as five month old.
______more and more forests destroyed, some animals are facing the danger of dying out.