Not until he left his home ______ to know how important the family was for him. 

Not until _____,_______the diffiult problem.

----It is nice. Never before___________ such a special drink! ---- I am glad you like it.

Never before________ seen a girl who can swim as fast as Ye Shiwen.

Only when the European countries’ financial system broke down_____ to take measures to deal with those problems.

Long long time ago, there was a mountain. At the top of the mountain___________, in which an old monk used to tell stories.

Every one of us must know：________we live can we save the earth.

The joy of life is a deep spring. Only when digging deep ______ clear and sweet water.

At the foot of the mountains ____ a tower built in the Ming dynasty.        

It rained heavily overnight and not until this morning____.

Little     about her own safety when trying to save the poor blind man, though she was in great danger herself.

__________people relaxation and pleasure, but it can also increase their knowledge of any kind.

—Dad, I feel just relieved after the dreaded national college entrance exam.  —__________.

________that Maric was able to set up new branches elsewhere.      

Only when he told me ________what trouble he was in.

West of our school ______ many barbecue stands, where many students like to go after school.

–Do you have any idea what your former boss would say about you?  –I don’t know, ________.

-When__________ and visit our exhibition next month?　 - When_______, I will let you know.

 Many people have donated that type of blood; however, the blood bank needs _____.

 George said that he would come to school to see me the next day, but he ______.