Nowadays, China has become the largest consumer of mobile phones. _______, every person has one mobile phone.
Living in the central Australia desert has a lot of problems, _______ getting water is the worst.
It was in Yuexiu Park _____ they dated for the first time _____ the old couple told us their story.
She is the only one of the students _______ able to answer this question.
She will never forget the days ______ she spent in Beijing.
He loves his parents deeply, ________ are very kind to him.