Trắc nghiệm ôn tập
Volunteers become more______ of the problems facing the world.
Câu hỏi:
Volunteers become more______ of the problems facing the world.
A.
concerned and unaware
B.
concerning and unawareut aware
C.
concerned and aware
D.
concerned but aware
Đáp án đúng: C
Đăng bởi: Monica.vn
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