问题
He became a famous writer when he was ______. [ ]
A: in his fifty
B: in his fifties
C: in fifty years old
D:in fifties
B: in his fifties
C: in fifty years old
D:in fifties
正确答案是：
同类题型
What were you doing this time yesterday? — I ______ on the grass and drawing a picture.
Everyone knows that a desk is made _____ wood and paper is made _____ wood, too. [ ]
Peter, do you know who _______ my dictionary?- Sorry, I don’t know. I _______ it.
You’re in a hurry. Where are you going?–To the cinema. Sue ______ for me outside.