下面一组单词中哪个不属同类

[　　]

A．beautifu　　　B．good　　　C．late　　　D．come

1. My grandfather left his hometown over 55 years ago.
My grandfather　_______________________________ for ____________ 55 years.
2. My grandparents got married 50 years ago.
It’s 50 years________________________________________________
3. My grandfather arrived in Nanjing last Monday. He is still in Nanjing.
My grandfather has　___________________ since last Monday.
4. My grandfather went to bed very late last night. He was too excited.
My grandfather_________________ go to bed__________ it was very late last night. He was too excited.
5. It took my grandfather two days to travel around the center of the city.
My grandfather　______________ two days______________________ the center of the city.

— May I speak to Annie, please?　

—_________.

　 A. Yes, you’re right　　　 B. Speaking　　　　 C. Thank you　　　　　 D. She is fine

About_______of the students in our class were born in the　 　　　　　 .

A. two-thirds, 1990s　 B. two-thirds, 1990　　　 C. two-third, 1990s