He said he couldn't follow me.句中couldn't能换成can't吗?He said he couldn't follow me.他说他跟不上我表示过去的能力时只能用can的过去式could吗?我查了资料又说了许多表示过去能力不用could的情况,感觉好

He said that he couldn't solve the problem.翻译 he said he couldn't listen to me 改错 He said he couldn't _______(背叛)his country What he said c_____me.And I couldn't understand him. 同义句He said he could eat no more. He said he couldn't eat __ __. He said he （）swim when he was six 这里是could还是couldn‘t He said that words couldn't d( ) his joy whHe said that words couldn't d( ) his joy when he worked out the maths problem. He could hardly understand what the towr guide said,__?A.did he B.didn't he C.could he D.couldn't he the boy said he couldn't finish his homework改为直接间接引语 I couldn’t hear what he said over the noise of the traffic.翻译 the boy said he couldn't finish his homework改为直接间接引语 the satisfaction of achieving what others said he couldn't翻译 句式结构用法 英译中 He said he couldn't afford to retire from work and live only on his pension. He said he couldn't understand people who talked fast,为什么用过去式?这样的句式有什么规律吗? He couldn't play with candles.I couldn't e . Yet Harry couldn't help thinking that Hagrid didn't quite meet his eyes when he said that. He couldn't tell the season翻译 翻译:He couldn't fall asleep