Choose the correct sentence which is built from the words and phrases given:
Two days ago / I / buy / a CD-ROM of Cambridge Advanced Learner’s Dictionary / your shop / I still keep the receipt.
Two days ago, I bought a CD-ROM of Cambridge Advanced Learner’s Dictionary from your shop; however, I still keep the receipt.
Two days ago, I bought a CD-ROM of Cambridge Advanced Learner’s Dictionary from your shop, but I still keep the receipt.
Two days ago, I bought a CD-ROM of Cambridge Advanced Learner’s Dictionary from your shop, and I still keep the receipt.
Two days ago, I bought a CD-ROM of Cambridge Advanced Learner’s Dictionary from your shop, as well as I still keep the receipt.
Two days ago, I bought a CD-ROM of Cambridge Advanced Learner’s Dictionary from your shop, and I still keep the receipt.