markets for chicken and other birds remained the primary source of infection.

　　A. controversial

　　B. complicated

　　C. substantial

　　D. contradictory

　　28. We don’t mean he is not fair, but we do feel that it’s difficult for him to remain ________ where his son is concerned.

　　A. positive

　　B. sensitive

　　C. objective

　　D. effective

　　29. Our teachers are highly skilled in all levels from Beginner to Advanced. And individual courses for particular students can be arranged ________.

　　A. by nature

　　B. after all

　　C. in store

　　D. on request

　　30. Any behaviour that is repeated enough times will ________ become a habit and happen

　　automatically.

　　A. eventually

　　B. virtually

　　C. deliberately

　　D. initially

　　【参考答案】21-25 DBBCA

　　26-30 BCCDA

　　【广西省南宁市2017高考英语模拟试题】

　　单项填空（共15小题；每小题1分，满分15分）

　　21. — Excuse me. How much is the shirt?

　　—________.

　　A. Extra large

　　B. 50 each

　　C. It sells well

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