Dove is the correct way to say it.
The best answer is the first option:
<span>For seven nights, he sneaks into the old man’s room and watches the sleeping man.
A good way to select the right answer is to read all of the options out loud. Which combination of the sentences sounds the most fluid and logical when you read it, and best preserves the meaning of the sentence? The first option does this best. </span>
It is when you know all the characters of a language
C. bicycling to build leg strength. It is the most general activity among the
four choices. Although it says to build
leg strength it is not so specific for what activity it will be used for. The other choices were more specific in their
goals.