时间加ago是什么时态

Question

如题所述

Answer 1

for和since是现在完成时的提示词汇，但两者用法不同:(1)for和表示一段时间的词组连用，如: for three minutes, for six hours, for nine days for twelve weeks, for fifteen months, for thirty years(2)since和表示过去某一时刻的词或词组连用，如: since nine o'clock this morning, since three weeks ago since last Friday, since September

Answer 2

什么时间加 ago, 应该是一般过去时。 比如：A few days ago, I were still in the U.S.
Three years ago, I had a chance to visit Great Britain.本回答被网友采纳