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 
In “He had set up the first printing house in England in 1476”, the underlined words mean
The word that matches Kathy’s lifestyle is
In “He walks slower than I do so I must slow up.”, the underlined word means
In “… the orange has seeds and so is perpetual;…”, the transition words introduce an idea of
No trecho sublinhado acima, comprehensive significa
The words below were taken from the text and are used according to two grammatical categories; all of them in this text are, respectively, an adjective and a noun, EXCEPT
The function word As, in As children advance through the educational system (lines 06),
The term bow has several meanings, besides one in the text. It is used correctly in all of the sentences below, EXCEPT:
