Around 200 million people are employed in to...
Câu hỏi: Around 200 million people are employed in tourism worldwide, making it the largest industry in the modern global economy. It is estimated that three-quarters of a billion people go on holiday each year, and industry planners expect this figure to double (43) __________ 2020. Some of the biggest beneficiaries are less developed countries, where it is often their main source of income.
A. before
B. until
C. by
D. in
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20 Đề thi thử thpt quốc gia môn Tiếng Anh năm học 2018 - 2019 !!