Untile the early 1990s nobody much thought about whole populations getting．．．＂getting＂词性?Untile the early 1990s nobody much thought about whole populations getting older.请问＂getting＂为什么用现在分词形式?　是表示正

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Untiletheearly1990snobodymuchthoughtaboutwholepopulationsgetting．．．＂getting＂词性?Untiletheearly1990sno

Untile the early 1990s nobody much thought about whole populations getting．．．＂getting＂词性?Untile the early 1990s nobody much thought about whole populations getting older.请问＂getting＂为什么用现在分词形式?　是表示正
Untile the early 1990s nobody much thought about whole populations getting．．．＂getting＂词性?
Untile the early 1990s nobody much thought about whole populations getting older.
请问＂getting＂为什么用现在分词形式?　是表示正在进行吗?　那为什么不用现在进行时呢?　如果是缩写,那还原后是什么样子?

Untile the early 1990s nobody much thought about whole populations getting．．．＂getting＂词性?Untile the early 1990s nobody much thought about whole populations getting older.请问＂getting＂为什么用现在分词形式?　是表示正
about 是介词,它后面要用名词或动名词作宾语,所以getting是动名词,不是现在分词.
整句意思：
直到20世纪90年代初,尚未有人真正地思考人口整体老龄化（的问题）.

Untile the early 1990s nobody much thought about whole populations getting．．．＂getting＂词性?Untile the early 1990s nobody much thought about whole populations getting older.请问＂getting＂为什么用现在分词形式?　是表示正 John opened the door ______his father came in.A.after B.when C.untile D.while如题,为什么选B不选A? early in the morning 等于early morning in the early Early in the morning the early morning in the early sixties the early evening in the early at the early in the early morning 还是 on the early morning in the early spring还是 on the early spring miss the early bus翻译 in the early nineteenth century. BILLY THE EARLY YEARS怎么样 Tom got up early to take the early bus转换Tom got up early( )( )( )take the Get up early,______ you'll catch the early bus early morning和early in the morning什么区别