21. Jenifer joined in the school speech competition on _______ behalf of her class and
came _______ second only to Alice.
A. the; 不填 B. 不填; 不填 C. 不填; the D. the; the
22. —I’m looking for a shirt for my sister. How much is the one the model wears?
—Five hundred yuan, but we can give you a discount, 10% _______.
A. on B. away C. up D. off
