The water in this river is harmful because It’s a ______ river.
---Mike seldom has breakfast at home, _______?--- _______ this morning.
Your opinion is considered to be _______ great value _______him.
---Will you go with us for an outing on Saturday?--- I’d like to, but I am really busy these days. I can’t _______ a whole weekend.
What did you do _______ the little girl _______ her parents just now?
He realized his mistakes and took action to reduce the loss _______ it was too late.