1 . Will you tell me_______ I can keep fit and healthy?

A．that

B．what

C．which

D．how

2 . It is natural __________ children are curious about the world around them.

A．that	B．whether
C．what	D．How

3 . ________ she couldn’t understand was ________ fewer and fewer students showed interest in her lessons.

A．What；why

B．That；what

C．What；because

D．Why；that