at present in the past at this time at that time at themoment时态 等等等等
问题描述:
at present in the past at this time at that time at themoment时态 等等等等
答
at present :目前;现在 用于一般现在时或现在进行时 in the past :过去 用于一般过去时at this time :在这时,此时 用于一般现在时或现在进行时at that time :那时;当时 用于一般过去时...