It can be inferred from paragraph 2 that before t
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It can be inferred from paragraph 2 that before the visa regulations were revised,foreign teachers have to______.
A. sign new contracts if they wanted to continue to work
B. go through any formalities if they wanted to stay a bit longer
C. visit a neighboring country if they wanted to renew their visas
D. interview a South Korean official if they wanted to apply for work permits
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答案：C
细节题。第二段中“Meanwhile , foreign teachers...without additional documentation." 可知，在新规定实施前，外国教师该怎么做，因此C项正确。