The origin of ____ life on earth is ____
题型:选择题
问题:
The origin of ____ life on earth is ____ question that interests astronomers.(原创)
A.the; the
B.\; a
C.\ ; the
D.the; a
The origin of ____ life on earth is ____ question that interests astronomers.(原创)
A.the; the
B.\; a
C.\ ; the
D.the; a