1 . 更重要的是，你应该毫不犹豫地抓住机会。(what...is that...)
______ you should never hesitate to grasp opportunities.

2 . 目前，许多人学汉语，那是因为中国在世界上正扮演着日益重要的角色。
At present, there are a number of people learning Chinese and ________________.

3 . I was upset that a man with a stick beat my beloved dog Poppy without mercy.
→_________ a man with a stick beat my beloved dog Poppy without mercy.(what引导的主语从句)

4 . 我不能和你外出是因为我必须照顾我生病的爷爷。
________________ I have to care for my sick grandfather.

5 . The bear tore a hole in the fence and put his head in. Elli and I were shocked.
→The bear tore a hole in the fence and put his head in, _______________. (定语从句)
→_______________ the bear tore a hole in the fence and put his head in.(主语从句)

6 . 最让我烦恼的是我的室友经常聊天到深夜，这让我难以入眠。
________ my roommates often chat late into night, which makes me sleepless.

7 . 在明亮的阳光下，湖面看起来好像点缀着闪闪发光的钻石。
In the bright sunlight the surface of the lake looks ________ shining diamonds.

8 . 他非常喜欢中国画。那就是他上周末去看艺术展览的原因。
He likes Chinese paintings very much.That’s __________last weekend.

9 . 植物非常重要。这是因为植物可以从空气、水和阳光中制造食物。
Plants are very important. ________________ plants can make food from air, water and sunlight.

10 . 好消息是，如果我们了解习惯是如何影响（我们）工作的，我们就可以改变。
The good news is ________________, if we understand how habits work.