So difficult _______it to work out the problem that I decided to ask Tom for some advice.

Only after the plane had taken off _________ that he missed his parents so much.

No sooner ______ home ______ I told him the exciting news.

_______, he talks a lot about his favorite singers after class.

Only when the villagers were faced with water shortage___       how serious the problem of water pollution was．

________should the young _______illegal behavior.

So difficult ___it to work out the problem that I decided to ask Tom for advice.

Not until the motorbike looked almost new _________ repairing and cleaning it.

—How was the 2008 Beijing Olympic opening ceremony?  —________ that the whole world was attracted.

Only by practicing every day ___________ English well.

Only when I left my parents for Italy __ how much I loved them.

Never before______ so highly successful in his attempts to forecast the weather accurately on a small scale．

_______the match is lost? We can fight again!

The roommates have lived for three years and not once _____with each other.

Tom wanted to play football with his friends in the street, but his father told him＿＿＿＿＿. 

—— There will be a storm soon. —— I am afrai?＿＿＿＿＿. 

——Do you think Jack is going to watch a football match this weekend? —— ＿＿＿＿＿. 

All substances, ＿＿＿＿＿ solids, liquids, or gases, are made up of entirely atoms. 

We will have a meeting next week, but we don’t know ＿＿＿＿＿. 

—— Coffee ＿＿＿＿＿ milk? —— Only milk, please, ＿＿＿＿＿ I used to like coffee.