19.He was busy writing a story,only _______ once in a while to smoke a cigarette.（08辽宁27） A.

相关推荐

• He was busy writing a story,only ( stopping ) once in a while to smoke a cigarette.请帮我理解为什么用stopping,
• 19.He was busy writing a story,only _______ once in a while to smoke a cigarette.（08辽宁27） A.
• [-A59] He was busy writing a story ,only ______ once in a while to smoke a cigarette.
• He was busy writing a story,only ( stopping ) once in a while to smoke a cigarette.
• 19.He was busy writing a story,only _______ once in a while to smoke a cigarette.（08辽宁27） A.
• he was busy writing a story,olny stopping once in a while to smoke a cigarette
• (3a的平方-ab+7)-(-4a的平方+2ab+7)