See the steps below.
Explanation:
These steps show you how to mark words or phrases for your index, but you can also Mark index entries for text that spans a range of pages.
Select the text you'd like to use as an index entry, or just click where you want to insert the entry.


You can add a second-level in the Subentry box. If you need a third level, follow the subentry text with a colon.
To create a cross-reference to another entry, click Cross-reference under Options, and then type the text for the other entry in the box.
To format the page numbers that will appear in the index, select the Bold check box or Italic check box below Page number format.
Click Mark to mark the index entry. To mark this text everywhere it shows up in the document, click Mark All.
To mark additional index entries, select the text, click in the Mark Index Entry dialog box, and then repeat steps 3 and 4.

See the steps below.
Explanation:
If the desired building block does not appear in either location, you can select it from the Building Blocks Organizer, as follows:
From the Insert tab, click Quick Parts and then click Building Blocks Organizer. The Building Blocks Organizer dialog box appears.
Topic 7, Team Building
Exhibit.

See the steps below
Explanation:
Click the File tab.
In the Security Warning area, click Enable Content.
Select Advanced Options.
In the Microsoft Office Security Options dialog box, click Enable content for this session for each macro.
Click OK.

See the steps below.
Explanation:
1. Select the Home tab in the ribbon.
2. Select the dialog box launcher in the Styles group.
3. Select the Options button in the Styles task pane.
4. Select All styles in the Select styles to show drop-down menu in the Style Pane Options dialog box.
5. Select the OK button to close the Style Pane Options dialog box.
6. Scroll to Comment Text in the Styles task pane; hold your cursor over Comment Text to reveal the options arrow.
7. Select the options arrow and then select Modify from the drop-down menu.
8. Select the Format button in the Modify Style dialog box.
9. Select Language in the drop-down menu.
10. Select English (or another preferred language) in the Mark selected text as drop-down menu in the Language dialog box.
11. Uncheck Do not check spelling or grammar to ensure that Word will include your comments in spelling and grammar checks.
12. Select the OK button to close the Language dialog box.
13. Select the OK button to close the Modify Style dialog box.
14. Save, close, and then reopen the document to activate your new comment review settings.
Topic 8, Adventure Works
Exhibit.

See the steps below.
Explanation:

When Track Changes is on, deletions are marked with a strikethrough, and additions are marked with an underline. Different authors' changes are indicated with different colors.
When Track Changes is off, Word stops marking changes, but the colored underlines and strikethrough from your changes remain in the document until they're accepted or rejected.