13. The voyage diaries were handed down by his great grandfather, so their brothers have kept them as ____ .
To her disappointment, what she had devoted herself to ____ in nothing but failure.
–Did you see ____ English teacher? --I saw him at ____ work in the office just now.
When ____ a new word, you’d better _____ a dictionary.
After the quarrel, I tried all my best to fix the misunderstanding between us, but all my efforts seemed ______.
- Better get down to your work, Jack. --- _____________.