You can’t spread some news on the Internet freely you are sure about it.

It is dangerous ____ you ______ a close look at the tiger in the zoo.

There _______ a factory here, but now it has changedinto a big supermarket.— You are so lucky to live here.

arted studying medicine at college,but_______to Business Studies in her second year

ysics teacher and English teacher always givetheir lessons in a lively and clear way,____ greatly benefits us students.