It was when Asimov was eleven years old
问题:
It was when Asimov was eleven years old ________ his talent ________ writing became obvious.
A.when; for
B.that; on
C.that; for
D./; on
It was when Asimov was eleven years old ________ his talent ________ writing became obvious.
A.when; for
B.that; on
C.that; for
D./; on