6：To be financially well ______,you need to work hard and spare no efforts to develop your career when young.

6：To be financially well ______,you need to work hard and spare no efforts to develop your career when young.
1.away
2.off
3.up
4.out
7：More than 10,000,000 permanent immigrants have been admitted legally ______ the United States since the 1960s.
1.in
2.with
3.to
4.on
8：We must see ______ it that all children are well taken care and all nurses have a strong sense of responsibility.
1.to
2.into
3.on
4.onto
9：She never regretted paying $ 200 for the bookcase.As a matter of fact she would gladly have paid________________ for it.
1.as much twice
2.as twice much
3.much as twice
4.twice as much
10：In the Chinese household,grandparents and other relatives play _____ roles in raising children.
1.incapable
2.indispensable
3.insensible
4.infinite