Every year _____ money and energy is spent on environment protection. [ ]

accidents, _________ forty-five people losttheir lives, have renewed concerns over the safety of overnight buses

It’s nothing unusual to experience failure , but should you get any less confident

(2014·江西省重点中学协作体第一次联考)—Tom should have been warned not to cheat in the exam—________，but he wouldn’t listen to me

______ are the students in your class—Most of them are only fourteen.