They have talked to him since morning.
They have been talking to him since morning.
这是前面一个网友提问中的两个句子,请问 since morning 可以不用冠词吗?比如说成:
They have talked to him since the morning.
They have been talking to him since the morning.
https://www.cpsenglish.com/question/62793
The temperature has fallen since (the) morning. 温度自早晨一直下降。
She had not looked in on Peony since (the) morning. 从早上起她都没去看望牡丹。