make it后跟时间时加不加介词答:我们列出不+介词的4种时间词:1.在 today, tomorrow, yesterday, the day before yesterday, 等时间名词前不用介词.We have had six lessons today.2.由this, that ,these, those 等时间名词前, 不加介词.That morning he got up very early.3.由next, last, the next, the last 等时间名词...