The Floreana tortoise, once considered to ______, is being brought back from the dead with careful conservation.
A.be wiped out B.have been wiped out C.wipe out D.have wiped out
While early literacy skills are important for a child’s growth, there are some ______ doubt whether we are forcing our kids to read too early.
A.whose B.which C.what D.who
All the staff of the company, who ______ extra hours these days, hope to finish the project as scheduled.
A.will work B.have been working C.were working D.have worked
—I heard that the teacher would punish us all because nobody ______ responsibility for the broken window.
—I think we must ask Henry to tell the truth. This may be the best way to approach it.
A.cast B.ranked C.claimed D.attained
The report at the conference analyses in detail why a new legal is needed to better protect the environment.
A.currency B.framework C.allowance D.occupation
假设你是星光中学的李华，将参加主题为“Let’s Ride Bicycles”的英语演讲比赛。请撰写一份演讲稿，主要内容包括：
1.目前汽车带来的空气污染和交通堵塞等问题；
2.骑自行车的益处，如环保、对健康有益等。
注意:1.词数：100左右
2.演讲稿开头和结尾已给出，但不计入总词数。
参考词汇：低碳生活：low-carbon life 节能：energy saving
Good morning, everyone,
I am Li Hua from Xingguang Middle School. I feel it an honor to communicate my idea to you. The topic of my speech is “Let’s Ride Bicycles”.
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