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There have  been a growing number of research on space exploration in the recent decades.

There have  been a growing number of research on space 

Câu hỏi

Nhận biết

There have  been a growing number of research on space exploration in the recent decades.


A.
has been 
B.
growing
C.
research
D.
exploration
Đáp án đúng: C

Lời giải của Luyện Tập 365

research sửa thành studies

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