A.ease insomnia
B.help keep the body's natural rhythm
C.lead to worse insomnia later
D.have no effect at all
A.Classmates.
B.Colleagues.
C.Boss and secretary.
D.PR representative and client.
A.Classmates.
B.Colleagues.
C.Boss and secretary.
D.PR representative and client.
A.He felt his assignment was tougher than Sue's.
B.His clients complained about his service.
C.He thought the boss was unfair to him.
D.His boss was always finding fault with his work.