This is the most beautiful park I have _____ visited.

A．ever

B．still

C．never

D．been

—In the old days, most teenagers had to work for the landlord (地主) in the field to help _____ their families, because their families couldn’t _____ education for them.
—What a pity!
A. support; supply B. afford; support
C. support; afford D. afford; give

Now most families have only one child _____ our country’s one-child policy.

A．so

B．because

C．because for

D．because of

—It seems _____ you like to work with children.
—Yes, they are so lovely.

A．that

B．what

C．to

D．as