Helen and Mary are good friends. _______often help each other.

The shop assistant finds it hard to satisfy the girl, for she is too ________ about clothes.

I don’t know when my son __________back, but when he __________back ,I’ll give you a call

I didn’t know you were friends with Mr. Smith. — We ______ each other for6 years.

The two dresses are very nice. I can’t decide _________。