11 My father turned on the radio in order to listen to the news
=> _____so that_____
12 The whether is very bad, so all flights are cancelled
=> ______because______
13 John was lazy that he could not pass the exam
=> Because______
14 My father can reover very quickly. I am happy (adj clause)
=>
15 Why don't we collect waste paper to make the environment clean
=> I suggest______
16 They expect that the new system will begin operations by 2020
It______
17 they have known that Ha Long Bay is considered World Heritage Site
=> It_____
18 This book is the least interesting I've ever read
=> I have never____
11 My father turned on the radio in order to listen to the news
=> ___My father turned on the radio__so that__he can listen to the news___
12 The whether is very bad, so all flights are cancelled
=> ____all flights are cancelled__because__the whether is very bad____
13 John was lazy that he could not pass the exam
=> Because__John was lazy, he could not pass the exam___
14 My father can reover very quickly. I am happy (adj clause)
=> I am happy that my father can reover very quickly
15 Why don't we collect waste paper to make the environment clean
=> I suggest____collecting waste paper to make the environment clean__
16 They expect that the new system will begin operations by 2020
It____is expected that the new system will begin operations by 2020__
17 they have known that Ha Long Bay is considered World Heritage Site
=> It___has been known that Ha Long Bay is considered World Heritage Site __
18 This book is the least interesting I've ever read
=> I have never___read such an interesting book_