根據漢語提示和句意，用方框中所給短語的正確形式完成下面的句子。

give way to keep your balance lead to make a proposal turn to donate..to...make sure

（1）Not knowing what to do，we

turned to

turned to

our teacher.
不知道要做什么，我們求助于老師。
（2）A reward will be offered to the information

leading to

leading to

the arrest of the bank robber.
提供可以幫助逮捕銀行劫匪的信息將會得到獎勵。
（3）In Antarctica，when the long dark winter

gives way to

gives way to

spring，ice begins to melt.
在南極洲，當漫長黑暗的冬季過去，迎來春天的時候，冰開始融化了。
（4）If you want to learn skating，the most important thing for you is to learn to

keep your balance

keep your balance

.
如果你想學習滑冰，最重要的事情是學會保持平衡。
（5）To write a great news story，you have to

make sure

make sure

it is correct，relevant and fresh.
要寫一篇好的新聞報道，你要確保它是正確的、切題的、新鮮的。
（6）The money

donated to

donated to

Project Hope is used to help the children in poor areas return to school.
捐贈給希望工程的錢被用來幫助貧困地區(qū)的孩子們回到學校。
（7）The head teacher

made a proposal

made a proposal

that all students make a social investigation on the cultural relics protection.
班主任提議所有學生對文化遺產保護作一個社會調查。