某总理在剑桥大学演讲时说“我深爱的祖国，古老而又年轻，历经磨难而又自强不息。”下列关于近代中国“历经磨难”与“自强不息”的对应组，不正确的是

1 $\frac{2}{3}$ ×____=1 $\frac{4}{7}$ ÷1____=____： $\frac{7}{8}$ =1．

阅读下面短文，从短文后所给的A、B、C、D四个选项中选出能填入相应空白处的最佳选项。

Dear Sally,

    How are you? I'm happy that you can do the things you 1 at home. I never have fun, because there are too many 2 in my family. My parents are strict. I have to 3 at six o'clock every morning. And I have to make my bed 4 before breakfast and then go to school. I can't play with my friends after school. I have to do 5homework. After dinner I have to take the dog for 6 walk in the park. I can't watch TV on school nights. I have to 7 the violin for an hour. I can't go to bed late. I have to be in bed 8 nine o'clock. On weekends I have to clean my room and 9the dishes. I also have to go to learn the violin on Sundays. I'm 10 tired. Can you help me?

Yours,

Lisa