問題詳情:
Jack had planned to visit his grandparents last weekend, but an emergency _____ and he had to reschedule.
A.should come up B.had come up C.came up D.would come up
【回答】
C
【詳解】
考查時態。句意:傑克原計劃上週末去看望他的祖父母,但突然發生了一件緊急事情,他不得不重新安排時間。由“he had to reschedule”可知,and連接的兩個句子都為一般過去時。故選C項。
知識點:一般過去時及其被動式
題型:選擇題
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