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Câu hỏi: Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.
The number of unemployed people__________recently.
A. is increasing
B. has increased
C. have increased
D. increase
The number of unemployed people__________recently.
A. is increasing
B. has increased
C. have increased
D. increase
Trong câu có recently nên dùng hiện tại hoàn thành, chủ ngữ the number of số ít => dùng has Ved/ V3
Đáp án B.