________ how others react to the book you have just read creates an added pleasure.(2013·浙江,7)
______ you think you can or not, you must finish the project before Friday.
Good news-two of our classmates ______ into Tsinghua University in advance!
.Now natural disasters happen one after another, ______ warns man to treat nature kindly.
It is usually cool in April in Chongqing, but it sometimes ______ be rather hot for a few days.
Two decades ago this city was ______ but a small unknown town.