There was a lot of fun at yesterday’s party. You ________ come，and what a pity!

The youth after 80’s are believed to be selfish and irresponsible, so experts suggest young parents should ____ their children to care about others.

It is necessary for everyone to a good habit of reading.

Li Na had managed to ______ in motion an upsurge（高涨）of students learning tennis across Asia.

Can you explain ______the OPEC can have such total control over the price of oil