Question

  You _____ arrive at 6:00 a.m., but you arrived at 7:00a.m. last Sunday. Don’t be late this time.
A. supposed to
B.were supposed to
C. are supposed to

Answer 1

B

解析试题分析：句意：你应该在上周上午六点到达但是你是七点到达的。这次不要在迟到了。be supposed to do,应该做···。根据句意，可知指是上周日应该做的事情，所以用过去时态，故选B。
考点：考查过去时态的用法。