The freezing point is the temperature __________ water changes into ice.
Whenever you are in trouble, you may ________ Mike. He is helpful.
This book is __________ I can't read it.
Make sure you get enough sleep and don’t make yourself so ______ !
-- Have you moved into your new house? -- Not yet. The rooms _______.
-- How was your life in the countryside? -- It was _______ but sometimes I felt a bit _______.