A. danger
C
Be at risk of sth/V-ing: có nguy cơ ( làm) gì
“...especially when we hear that primary school chidren may be at risk of becoming addicted to the habit.”
(... đặc biệt là khi ta nghe được rằng trẻ em học tiểu học có nguy cơ trở nhên nghiện thói quen đó.)
The author argues that there is more diversity of life in the sea than in the rain forests because
The (26) ________ group will appreciate the recent study, as a hunter is more likely to require such speed.
It could run 100 metres in a little over six seconds, which would beat modern Olympic (28) ________ more than a third of the track behind.