問題詳情
10. The dirty air, known as smog, is a combination of weather conditions, fumes and smokefrom cars and factories and therefore is sure to ______ many serious health problems.
(A) bring up
(B) give rise to
(C) look forward to
(D) have little to do with
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增