根据对话情境和内容，从对话后所给的选项中选出能填入每一空白处的最佳选项，并在答题卡上将该选项涂黑。选项中有两个为多余选项。Doctor: Good morning, Sir. ____
Johnson :Yes, doctor. I'm always tired but when I go to bed I can't sleep.
Doctor: ____
Johnson : Since I started my new job two months ago.
Johnson : I’m in advertising.____
Doctor : It depends. How many hours do you work?
Johnson: About 80 hours a week
Doctor: ____ . Do you often take exercise?
Johnson: Not very often. ____ .
Doctor： Well, you do need to find some time. Try to work less, or look for a more stress-free job.
A. That's a lot!
B. I like my job.
C. Does it matter?
D. How can I help you?
E. I don't have the time.
F. What time do you usually go to bed?
G. How long have you had this problem?
的单调递增区间是（ ）