The decision was made ________ more medical teams would be sent to help people in the earthquake.
A．what B．which
C．that D．when
Mobile phone users have developed a series of symbols, such as and to show ________ they feel.
A．which B．when
C．how D．why
Inside the White House, there is a room called the Oval Office. That's ________ President Obama works.
A．why B．where
C．what D．how
________ I regret most is that I have promised to make friends with the dishonest girl.
A．How B．What
C．Where D．That
We can find out ________ all the excitement is about by playing QQ's “Happy Farm”．
A．that B．how
C．what D．when
I can't figure out ________ it is that makes him so difficult at school.
A． how B．what
C．why D．which
