It was not until ....that..

It was not until + time word/phrase/clause that + clause 
EX:
1. She didn’t become a teacher until yesterday.
=> It was not until yesterday that he became a teacher. 
	time word
2. He didn’t come home until late in the evening
=> It was not until late in the evening that he came home. 
	time phrase
3. He didn't know how to swim until he was 30 years old. 
=> It was not until he was 30 years old that he knew how to swim. Nguồn: www.HsNSL.Net 
	time clause
Rewrite the following sentences using “It was not untilthat”
Cinema didn’t become an industry until 1915.
	@	
My son didn’t start talking until he was 5.	
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Lan didn’t go abroad until she was 35.
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We didn’t go to bed until midnight.	
	@	
The boy didn’t stop singing until their teacher came.
	@	
She didn’t write to him until she receive a letter from him.
	@	
The letter didn’t arrive until yesterday.
	@	
We didn’t have a holiday until last summer.
	@	
We didn’t finish it until the end of last summer.	
	@	
The child didn’t go to sleep until her mother came home.
	@	
The boy didn’t tell the truth until his father threatened to punish him.
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The patient’s heart condition didn’t improve until she received that new treatment.
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He didn’t stop working until he felt too tired.
	@	
The police didn’t make any accusations until they had some proof.
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The little girl didn’t open the gifts until the last visitor left.
	@	
He didn’t get married until he was forty.	
	@	
He hadn’t been a famous singer before he went to HCM city.
	@	
She didn’t begin to learn English until 1980.
	@	
We didn’t study English until we began primary school.
	@	
I didn’t learn English until 2002.
	@	
He didn’t know how to swim until he was 30
	@	
They didn’t begin to learn English until 1980.
	@	
The boy didn’t do his homework until his father came home.
	@	
NOTE: (Inversion) đảo ngữ mệnh đề 2
Only When + S V, Vaux + S V : Chỉ khi làm gì
EX:	I didn't know she had been well-known until her friends told me.
	=> Only when her friends told me did I know she had been well-known.
16. Only when you grow up ______ the truth. 
	A. do you know 	B. you will know 	C. will you know 	D. you know 
(TRÍCH ĐỀ THI DẠI HỌC NĂM 2009-2010 MÃ ĐỀ 469)
Not until + N + Vaux + S V: Mãi đến khi
EX:	Man didn't fly into space until the early 1960s
	=>Not until the early 1960s did man fly into space.
Not until S V , Vaux + S V: Cho đến khi
EX:	They couldn't go on working until the rain stopped
	=>Not until the rain stopped could they go on working
She had not seen him until last Friday. =  Not until last Friday had she seen him.
The structure is not restricted to the past perfect tense.
She will not see him until next Friday. = Not until next Friday will she see him.
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