Mark the letter A, B, C, or D on you...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following question
Teacher shortages hinder new English training programmes carried out in Ho Chi Minh City.

A.obstruct

B. facilitate

C. impede

D. prevent