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.