Resposta :
Vamos primeiro entender? Verbos terminados em ing indicam present continuous, verbos terminados em s (por exemplo) indicam present simple e verbo conjugados no passado indicam past simple. Agora vamos para as questões.
I am writing an essay about global warming.
↘ O writing indica present continuous.
His father likes to watch football games.
↘ O likes indica present simple.
He was a lovely grandfather.
↘ O was indica past simple.
Então é a alternativa C (Present Continuous – Present Simple – Present Perfect)!
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