Read the following pasage and decide which answer (A, B, C or D) best fits each space

With job vacancies available all year round offering high salaries, Vietnam has been ranked the second best place in the world to teach English by TEFL Exchange, a community for teachers of English (31)______ a foreign language.

The site (32)______ that a foreign English teacher can earn between 1,200-2,200 USD a month in Vietnam, where the average annual income in 2016 was just 2,200 USD. They can (33)______ a job any time of year and the best places to do so are the country’s three largest cities: Hanoi, Ho Chi Minh City and Da Nang. Candidates only need to hold a bachelor’s (34)______ and a TEFL (Teaching English as a Foreign Language) certificate.

English is an obligatory subject from sixth grade across Vietnam, but in large cities, many primary schools demand high (35)______. Foreign language centers have been thriving here, with students as young as three years old.

With job vacancies available all year round offering high salaries, Vietnam has been ranked the second best place in the world to teach English by TEFL Exchange, a community for teachers of English (31)______ a foreign language.