问题
选择题
You to ask the teacher if you want to hace a day off.
A．are supposed
B．suppose
C．are allowed
D．allow
答案
答案：A
题目分析：考查固定词组。固定词组be supposed to do sth本应该做某事；句意：如果你想请一天的假，你应该问老师的。
点评：固定词组be supposed to do sth="should" do sth本应该做某事