1 . I think you must settle your problem in a ____________ (和平的) way. Fighting can’t solve any problem.

2 . Little is he __________ (concern) about how to get used to the job in the company as soon as possible, though he is still new to his duties.

3 . There are so many people with guns these days; it’s really ___________. (fright)

4 . You can depend on him to come on time--- he is very ___________. (rely)

5 . We'll have a _________ holiday, what about going to Huang Shan ?

A．seven days

B．seven day

C．seven-day

D．seven-days