Definition: to be expected to be something, especially because of a rule, agreement, etc. Level: B2
孩子们应该在上午8点45分前到校。
The children ___are ___supposed ___to ___be at school by 8.45 a.m.
你在床上做什么？你应该在睡觉的！
What are you doing out of bed? You ___are ___supposed ___to ___be asleep!
这应该是一个惊喜。
It ___was ___supposed ___to ___be a surprise.
