Помогите, пожалуйста! Спасибо!!

5 They _ With friends at the moment 
A. are staying
B. have been staying
C. stay
*
6 We usually _ Out On Saturday evenings. 
A. are going
B. go
C. have been going
*
7 This shampoo _ of roses. 
A. smells
B. is smelling
C. has been smelling
*
8 John _ very polite to people these days. 
A. has been
B. is being
C. has been being