I DON'T KNOW HER PHONE NUMBER, SO I CAN'T CALL HER. A. I KNOW HER...

18. I don't know her phone number, so I can't call her. A. I know her phone number but I can't call her. B. I look up her phone number and I can call her. C. I don't know her phone number, but I call her. D. I can't call her because I don't know her phone number. Choose the word whose underlined part is pronounced differently from that of the others: