In order to continue to learn by ourselves after leaving school, we must________learn how to study in the school now.
—Where can I find Martin?Dad is asking for him. —He_______in the backyard chopping wood.
All agree that the pollution now is not easy_______.
—Where are the visitors from? —_______from South Africa.
—Who cooked the_______dishes? —Maybe Evens did.
Johnson can now operate the machine much better than he_______.