Thehousecaught     firelastnight.It’ssaidtohavebeenset...

問題詳情：

 The house caught      fire last night. It’s said to have been set       fire to on purpose.

     A. / ; /       B. a ; a       C. a; /        D. / ; a

【回答】

A

知識點：冠詞

題型：選擇題