Problems relating to people’s livelihood have been the focus of the government, especially _______ ­­Premier Wen Jiabao included them in his government work report last year.

         A. when                               B. if                              C. since                             D. until

Problems relating to people’s livelihood(民生)have been the focus of the govemment，especially_____Premiel Wen Jiabao included them in his governmentwork report last year．

A．when　　　　　 B．if　　　　　 C．since　　　 D．until

Problems relating to people's livelihood(民生)have been the focus of the government, especially ________ Premier Wen Jiabao included them in his government work report last year．

1. A.
   when
2. B.
   if
3. C.
   since
4. D.
   until