1 . No sooner had I begun to understand how British people communicate _______ it was time to head back home. (用适当的词填空)

2 . 如果有必要，你最好查字典。
____________， you'd better refer to the dictionary.

3 . ________great fun it was marching along the streets, enjoying the festive atmosphere! (用适当的词填空)

4 . Only after they had discussed the matter for several hours ________ (他们才作出决定). (根据汉语提示完成句子)

5 . I learned a lot about agriculture when ________ (pick) fruit on the farm. (所给词的适当形式填空)

6 . It wasn’t until in high school ________ I began to trust other people again. (用适当的词填空)

7 . John talked with me for about an hour yesterday. Never ________ (我以前从未听过他说那么多话). (根据汉语提示完成句子)

8 . 唯有如此，互联网才能成为每个人的发现之地、奇妙之所、灵感之源。
Only in this way _______ the Internet ________a place of discovery, wonder and inspiration for everyone.

9 . 为了买一双理想的靴子，一家店接一家店去找的日子已经一去不复返了，你可以舒舒服服地待在自家客厅里比较款式和价格，省时省力。
________ ________ the days of searching shop after shop for the perfect pair of boots—you can compare styles and prices quickly and easily in the comfort of your living room.

10 . Over the past 50 years, about 17 per cent of the rainforest ________ ________ ________ _______ human activities such as agriculture and cattle farming.
在过去的50年里，由于农耕和养牛等人类活动，大约17%的雨林已经消失。