Maybe you are in ___ trouble, but don’t lose _____ heart in face of difficulty.
-- Why didn't you go camping with us? -- But I ______ all about it!
-- When do you need to pay the balance? -- ______ December 31.
I think ______ information of this kind is help when you look for a job.
25. The doctor recorded the ______ of the old man’s death as heart failure.
24. The reference book is of great value. ________ can be enjoyed from it until you have a deep understanding of it, however.