句型转换。
根据括号里的要求改写句子，每格一词。（本题共5小题，每格0.5分，满分5分）
Alice did her homework at home last night.（改为否定句）
Alice _________ _________ her homework at home last night.
He will finish the work in two days.（对划线部分提问）
__________ ___________ will he finish the work?.
Ricky could play the violin when he was six years old.（保持句意基本不变）
Ricky was _________ to play the violin at the _________ of six.
Mary made great success in her research because she put her effort into it.（改为简单句）
Mary made great success in her research ___________ ___________ her effort.
Liu Tao was very brave. He saved his neighbour out of a fire. (合并为一句)
Liu Tao was brave ____________ ___________ save his neighbour out of a fire.