From 8:00 to 12:00，I have 4 lessons (in the moring).
I have 4 lessons in the morning,they start at 8:00 and finish at 12:00.
时态含拿就要结合语谈轿搭境了帆岩。
I have four lessons in the morning from 8:00 to 12:00.
i have fore lessons in the morning from eight o'clock to noon
I have four lessons in the morning, from eight to twelve