The main idea defended by the author in the text is that 
The expression of the text “another tip” (line 5) suggests that the author 
In the fragments of the text: “they may lose the desire to master whatever task you are asking them to do” (lines 12-13) and “then you have to do more than just present lessons in the app” (lines 18-19), the verb forms in bold express the ideas, respectively, of 
In the sentence of the text: “However, if you want people to continue using the app, and use it frequently and often, then you have to do more than just present lessons in the app” (lines 17-19), the connector However can be replaced, without any change in meaning, by 
Professor Keith Sawyer mentions that “The group has the ideas, not the individual musicians.” (lines 78-79) to mean that
In the fragment “as those experienced by their bigger counterparts” (line 92) the pronoun those refers to
The statements below represent opinions collected from different workers.
The only one which can be considered as an argument against coworking is:
According to the text, in Latin America, education advocates
An example of socio-emotional skill is
In the excerpt of the text - “are especially critical for workers and managers in a globalized economy defined by its unpredictability and dynamism.” - (lines 39 - 41) the possessive pronoun its refers to
