―When was the house built?

―It was built in 1949 _______ the PRC was founded．

A．which

B．that

C．what

D．when

“冬天到了，春天还会远吗”是谁的诗句（）

A、雪莱

B、列夫托尔斯泰

C、巴金

D、普斯金