An apostrophe.
The proofreading mark used for an insertion is basically a v shape or an inverted caret; when written, you use the caret point like an arrow point to indicate where the insertion should go, ideally in a different color than the normal text to call attention to it. Then, at the wide point of the caret you write what needs to be inserted. If it is too long to write at that point, you draw a line to the margin and add the insertion text there.
The apostrophe.
character
I'm not completely sure but I believe it's called a "tilde"
It should be--- I love chocolate.
like this quick! the punctuation mark is the exclamination mark !
The missing punctuation mark is a period.
The missing punctuation mark is a period. The correct sentence should be: "Teacher said, 'Come follow me.'"
There is nothing missing... other than possibly a period at the end.
The missing punctuation is a question mark. The sentence should be: "You want to go home?" shouted Martha.
I can play the piano
The proofreading mark used for an insertion is basically a v shape or an inverted caret; when written, you use the caret point like an arrow point to indicate where the insertion should go, ideally in a different color than the normal text to call attention to it. Then, at the wide point of the caret you write what needs to be inserted. If it is too long to write at that point, you draw a line to the margin and add the insertion text there.
The apostrophe.
A colon is placed after "Dear" in a business letter, not after "The."
period
A comma
A capital letter, a punctuation mark, and a verb.