.There _______ great changes in my hometown by the end of 2000.A.have been B.were C.had been D.had had

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.There _______ great changes in my hometown by the end of 2000.A.have been B.were C.had been D.had had
.There _______ great changes in my hometown by the end of 2000.A.have been B.were C.had been D.had had

.There _______ great changes in my hometown by the end of 2000.A.have been B.were C.had been D.had had
选择C,是过去完成时,到2000年年末,所以是用过去完成时的~

c是过去完成时

选C 是There be 句型的过去完成时 There had been