The book tells ____life story of John Smith ,who left _______school and worked for a newspaper at the age of 16.
It is reported that very little use of these waste materials_______ in the past decades.
----What terrible weather! I really don't agree with it!----- ____________ .
______the bones under the sand,the scientists concluded that they came from the dinosaurs about 65 million years ago.
She is a quiet girl at school,but sometimes she _____be very naughty.
Shy people often avoid situations _____would force them into close contact with other people.