完成句子：根据各小题A句的意思完成B句，使两句的意思基本相同。每空限填一个单词。
1. A: The lazy boy usually doesn't go to school on time.
B: The lazy boy is usually ________ ________ school.
2. A: I find that it is hard to get along well with all my classmates.
B: I find _________ _________ to get along well with all my classmates.
3. A: This question is difficult enough for me to answer in such a short time.
B: This question is ________ difficult ________ I can't answer it in such a short time.
4. A: Mike is 17 years old and Kate is 15 years old.
B: Kate is two years ________ ________ Mike.
5. A: Xiaogan has changed a lot in the past few years.
B: Great changes have ________ ________ in Xiaogan in the past few years.
6. A: Mr Smith came to China six years ago.
B: Mr Smith ________ ________ in China for six years.
