1 . Zhong Wen’ an, chief engineer at the Xichang Satellite Launch Center, said they had completed the most extensive rehearsal before launch, ________is also the final joint rehearsal. (用适当的词填空)

2 . In the future, scientists plan to use sustainable supplies of cells ________can be maintained in the lab. (用适当的词填空)

3 . 我写信是想邀请您参加“访谈”这个英语节目，三年前我第一次参加这个英语节目时给我留下了深刻印象。
I’m writing to invite you to participate in “Talk and Talk”, ________ the first time I joined in three years ago.

4 . 青少年吃垃圾食品的数量逐年上涨，这逐渐损害了他们的健康。
________________, which gradually ruins their health.

5 . 我们将于下周六在一家距离我们学校两公里远的农场举办水果采摘活动。
We’ll hold a fruit­picking activity next Saturday on a farm ________. (定语从句)

6 . 戴维有一种大脑疾病，使他不能像其他孩子一样走路或跑步，但在学校里，他的同学们把他当作一个普通的孩子。
David had a brain disease ________________ like other children, but at school his classmates thought of him as a regular kid. (定语从句)

7 . While the rest of the team were pushing eastwards from a general area ________had been searched, Bell had a feeling that the boy would be found in a westerly direction. (用适当的词填空)

8 . I will tell you the way   ________ you can study English well, because I know the way ________ you have accepted is not the best.（用适当的词填空）

9 . Our friends are better able to offer advice on important decisions ________ we all have to make.   （用适当的词填空）

10 . 中国以其古老的文明而闻名，尽管历史跌宕起伏，但它一直延续到现代。（汉译英）