Question

[Lê Quỳnh Anh]

Mark the letter A, B, c, or D on your answer sheet to indicate the correct answer to each of the following questions.
Birds all over the world migrate distances up to________of miles.

A. a thousand

B.some thousand

C. thousand

D. thousands

Answer 1

[Dương Hoàn Anh]

Đáp án là D. thousands of + N(s): hàng nghìn ....