The topic sentence of Para. 2 is ____________.
A.he didn't know what to do with himself B.he went on holiday to interesting places with his wife C.he was unhappy after he got retired D.none of them正确答案C
The topic sentence of Para. 2 is ____________.
A.he didn't know what to do with himself B.he went on holiday to interesting places with his wife C.he was unhappy after he got retired D.none of them正确答案C
