_______twice, he didn't want to try again.
Your cousin is said________a new computer programme recently,but do you know when he will finish it?
8.The average Facebook user in the United States has 245 friends,according to a study______in February.
________her mother after being separated for 20 years,she couldn't help,even though she tried not to,________.
—What in the world put you in a really bad mood?—________in the traffic for hours.
In the next five years,the government's work will be evaluated________on people's happiness level instead of GDP alone.