When did China and America establish diplomatic relations？A．In January,1972.B．In January,

Why did many people think that Rock and roll was ruining the youth of America？A.Rock

How long did it take Byrd and his colleagues to fly from Little America to the South Pole

When did China set up diplomatic relationship with Canada？A．January 1979.B．March 1972.C．Oc

When did the Internet education start in China？A．Nine years ago.B．Eight years ago.C．Seven

—When did he go to America？—Oh, he ______ there since half a year ago.A wentB has beenC

The competition mentioned in the last paragraph is between______.A．South America and China