21. He made a great show of being ______ of her in front of other people, but he is only toying with her.
A. fond B. crazy C. addicted D. interested
22. Tuvalu, an island country in the West Atlantic Ocean, may be ______ the sea due to climate change in the near future.
A. admitted to B. lost to C. addicted to D. equal to
23. Education is to a human soul _______ sculpture is to a block of marble.
A. that B. which C. what D. where
24. At the Copenhagen conference, all the countries were called on to do all they could to control green-house gas emission ______ it was too late.
A. when B. after C. until D. before
25. America values its economic leadership, and the political and military strength that ______ it.
A. meets with B. goes with C. deals with D. fights with