1 . Social media tools let us see what our friends are up to and __________(维持)friendships without missing a beat．

2 . M___________ a good relationship with your customers is the key to success of your business.

3 . It is best if divorced parents can________ (保持)friendly relations for the sake of the children. （根据汉语提示单词拼写）

4 . Healthy eating and physical exercise are effective ways of m ________ good health. （根据首字母单词拼写）

5 . We human beings should try every means to ________(保持) the balance of nature. （根据汉语提示单词拼写）

6 . Taking regular exercise is the most efficient way to build up and m______(保持)a reasonable level of physical fitness.

7 . He wanted to m_________ (保持) a good relationship with the ambassador in case others found out just how poor he really was.

8 . We should always keep it in mind that it is everyone's responsibility to ____ (维持) the image of our motherland.

9 . Push yourself to make friends and to _________ (保持) the friendships. (根据汉语提示单词拼写)

10 . It is difficult for women to m__________ the balance between family and career. (根据首字母单词拼写）