Question

I__this book twice since I bought it two years ago. A read B be reading C have read D have readed

为什么选C？

Answer 1

C

现在完成时 构成是 have has +动词的过去分词 read 的过去分词就是原形 所以选c
希望对你有所帮助，有不明白的再问吧

Answer 2

since 是现在完成时的标志，read的过去分词与原形相同，故C对

Answer 3

C 从两年前我买了这本书后，我读了它两次。