25. The doctor recorded the ______ of the old man’s death as heart failure.
A man does not know the difficulty of anything _______ he does it personally.
The notes for glossary (词汇) are very exact and particular, which could help readers to break the language so directly and effectively.
There is no power like _____ power of confidence, and there is no student as competitive as _____ student who trusts his own abilities.
When it comes to a foreign language, he is not ________ quick a learner as his brother.
________ advertisements are of great help, I don’t think we should entirely rely on them.