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

2 . 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)

3 . The meat filling might consist of chopped pork, beef or chicken ________ has been cooked with a variety of spices. (用适当的词填空)

4 . Molai grew up in a tiny village in India. The village lay near some wetlands _____________ became his second home. (用适当的词填空)

5 . It is the recent study ______ laid its stress on the impacts of climate change on marine ecosystems ______ shed light on the prompt need for conservation efforts in these vulnerable habitats.

A．that…where

B．which…that

C．where... that

D．as…where

6 . 一到这个美丽的岛屿，他就对岛上土生土长的植物产生了兴趣。(定语从句)
On arriving at the beautiful island, he became interested in the plants _______________．

7 . 他们吃大量的垃圾食品，垃圾食品的热量很高。
They __________________.

8 . 在艺术文化会演中，有各种各样的表演，从唱歌、跳舞到背诗不等。
a．In the course of the Art and Culture Show, there are various performances, ________________．(定语从句)
b．In the course of the Art and Culture Show, there are various performances ________________．(现在分词短语作定语)

9 . 休息时，我们的班主任开始处理他课上出现的问题。
a．At break, our headteacher got down to dealing with the matters________________．(分词短语作定语)
b．At break, our headteacher got down to dealing with the matters ________________．(定语从句)

10 . 坦率地说，有一系列对我们英语学习有益的方法，但是找到最适合你的是非常重要的。
Frankly speaking, there are a wide range of ways ________________ our English learning, but it is of great significance to find one that suits you best.