1 . Think carefully before you answer questions online. You may give ________ very important personal information. (用适当的词填空)

2 . Fireflies（萤火虫）will give ________ flashes of light when they fly at night. (用适当的词填空)

3 . He was ____________ eager to know the result of the examination. (用适当的词填空)

4 . It is generally believed that you can’t be ____________careful when crossing the street. (用适当的词填空)

5 . Eat the food all; _____ (否则) you’ll get hungry. （根据汉语提示单词拼写）

6 . Mr. Smith had stayed in many parts of the world, and he finally settled ______in Canada in the 1990s. (用适当的词填空)

7 . Sharing encourages us to reuse items, thus cutting _____on waste. (用适当的词填空)

8 . The sun came ________from behind the clouds late in the afternoon. （用适当的词填空）

9 . 新学期的第一天，孩子们依次走进教室。
On the first day of the new term, the children entered the classroom ________ ________ ________.

10 . The universities have expanded, __________ (因此) allowing many more people the chance of higher education. (根据汉语提示单词拼写)