1．Research ____________(表明)that men find it easier to give up smoking than women.
2．Our music class ____________(组成)of 12 Chinese and 8 American students.
3．There are two ____________(官方的)languages in Canada：English and French.
4. I’d like to say that his ____________(发音)is much better than before.
5．It is certain that the ____________(进程)will be slower than expected.
6．It is said that the situation in Iraq is out of __________ now.
7．A new ____________ will be set to guide this business.
