Thetrain（）toarriveat11:30,butitwas
单项选择题 【2018年真题】The train（） to arrive at 11: 30, but it was an hour late.
A.was supposed
B.is supposed
C.supposes
D.supposed
正确答案：A
答案解析:考查固定短语。
句意：那趟火车应该十一点半到，但是它晚了一个小时。 be supposed to do sth。意为“应该做某事”，又因为本句时态为一般过去时，故选A。
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