be supposed to + V. 应该
1.What am I supposed to do?
我应该做什么呢？
2.You’re supposed to follow my advice.
你应该遵从我的建议
3.You’re supposed to go to bed.
你应该去睡觉了
4.You're not supposed to park here.
你不应该在这里停车
5.You're not supposed to smoke in here.
你不应该在这里抽烟
