at the moment “此时”、“此刻” ( 现在时态 ) “那时” ( 过去时态 )
eg:
He is busy at the moment 他此刻很忙.
At the moment he was busy preparing his lessons .那时,他正忙于准备功课
at the moment “此时”、“此刻” ( 现在时态 ) “那时” ( 过去时态 )
eg:
He is busy at the moment 他此刻很忙.
At the moment he was busy preparing his lessons .那时,他正忙于准备功课