The word vary” in paragraph 6 can be best replaced by ___________.

* Hướng dẫn giải

Đáp án C

Kiến thức: đọc hiểu

Giải thích: vary (v): khác nhau

decrease (v): giảm bớt                                        change (v): thay đổi

differ (v): khác nhau                                           increase (v): tăng

Thông tin: There are many companies willing to pay people with Internet skills salaries well over $70,000 a year. Generally, webmasters start at about $30,000 per year, but salaries can vary greatly.