阅读句子,根据句意选择方框内合适的词组,用其恰当形式填空。请在答题卡指定区域作答。associate with, drop out, a couple of, be to blame, be related to
(1)
Some types of cancer traffic pollution.
(2)
I've read Graham's books and seen him on TV.
(3)
I have a never-ending flow of messages and updates from all the people I online.
(4)
Many scientists say we are now entering the Earth's sixth mass extinction. Thistime, human activity will .
(5)
Jason Harley decided to of this kind of lifestyle, and he discovered that having only a little money made him free.
答案: 【1】are related to
【1】a couple of
【1】associate with
【1】be to blame
【1】drop out