For some parents, the Internet can seem like a jungle, ______ danger for their children．
A．filled with B．filling with
C．to be filled with D．having been filled with
．Several hours later, with the help of the police , the students managed to escape from the dangerous place, ______．
A．hungry and frightened B．hungrily and frightening
C．hungry and frightening D．hungrily and frightened
It is unfair that so nice a person like Jenny ______ lose her job．She works so hard!
A．can B．may C．should D．shall
．To deal with the global financial crisis, China ______ the international community to help developing countries．
A．called on B．called up C．called in D．called for
_______he lives in a large flat and owns much money, he doesn’t seem as happy as before．
A．Before B．Whether C．Unless D．While
．We are taught that a business letter should be written in a formal style ____ in a personal one．
A．less than B．other than C．better than D．rather than
