The after morning (1)/ she woke to the first ray of (2)/ light through the window. (3)/No Error (4).
What is the error in this sentence. please explain.
(1) is wrong. "After" should not precede "morning" in this context.
The corrected sentence should read
The morning after, she woke to the first ray of light through the window.
or more commonly,
The following morning, she woke to the first ray of light through the window.
Both sentences occur after a comment about the night before. Note that the phrase "the morning after" may imply that she had sex the night before. "The morning after pill" is a frequently referenced form of contraception, so "the morning after" has become something of an idiom used in this context.
(1)
etc. are where you (or whoever created this question) thinks there are problems... are the slashes/
just part of marking where the problems are, or are they significant in their own right? (E.g. they're sometimes used when quoting poetry to show where line-breaks occur). Also, you have two sentences; is the second ("No Error") intended to be related/connected to the first, or is it entirely separate?