QUANTIFIERS: much, many, a few, a little

Food: pizza toppings, una ficha interactiva de yolya83
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Environment

Destroy vs Preserve the Environment, an interactive worksheet by karagozian
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What should we do to protect the environment?, an interactive worksheet by victor
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Environmental friendly, an interactive worksheet by jfaraujo
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What should we do to protect the environment?, una ficha interactiva de victor
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Environmental friendly, una ficha interactiva de jfaraujo
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Greenhouse effect, una ficha interactiva de Eremenko
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Present Perfect Continuous

Practise:

https://english.lingolia.com/es/gramatica/tiempos-verbales/present-perfect-progressive/ejercicios

Present Perfect Continuous Rules, una ficha interactiva de Dendelmia
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Present Perfect Continuous Negative, una ficha interactiva de myrjud
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Present Perfect Continuous, una ficha interactiva de engteachar
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Present Perfect VS Present Perfect Continuous, una ficha interactiva de Abie28
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Modal Verbs

Modal verbs - quiz, an interactive worksheet by mada_1
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