1 . There is no doubt ______ international cooperation is key to ______ with cybercrime, as Vinton Cerf has said that the problem of cybercrime is _______ huge that it requires UN to form a special agency to act as an international referee or steward.

A．whether ; doing ; so	B．that ; dealing ; so
C．whether ; dealing ; such	D．that ; doing ; such

2 . A forest is usually found _______ heavy rainfall is frequent.

A．there

B．which

C．where

D．because

3 . He doesn’t think the question of ________they are boys or girls is important.

A．if

B．whether

C．which

D．that

4 . Then came the disappointing news _____ Brazil was beaten by German in the 2010 World Cup, ______ was bound to cast down the Brazilian fans.

A．that; what	B．which; which
C．which; what	D．that; which