-- ________ do you study for a test?-- By listening to the English programs every day.
We should tell hunters _______tigers.
Yesterday I talked to Amy on the phone and she ______ happy.
Can you tell us how important wildlife ___ is?
There are ________ bears on the earth because they have ____________ space on it.
China ________ food and drinks ________ the people in Philippines(菲律宾) last month .