We use the present perfect in English to talk about:

Questões de assuntos semelhantes

• No trecho It works by creating a reference image of the iPad’s screen and mapping the target’s finger movements onto this (l. 16-19)...
• In the text, the verbal tense of “the spacecraft promises” is:
• Mark the CORRECT alternative according to the correct grammar use of the Infinitive and Gerund forms:
• Consider the use of ‘To’ in the beggining of most paragraphs of the text, and select the correct answer. • It is an adverb. • It is...
• Jane must be out of town. She ______________ to class for a whole week and missed a lot of important infomation.