问题
My father has worked as a surgeon since he graduated __________.– So he is _____________ now
A:in 1972, in his forties
B:in 1970s, in his forties
C:in the 1970, in the forties
D:in the 1970s, in his fortieth;
B:in 1970s, in his forties
C:in the 1970, in the forties
D:in the 1970s, in his fortieth;
正确答案是：
