SIMPLE PRESENT

 EASY

https://www.liveworksheets.com/w/en/english-second-language-esl/1010576

MEDIUM

https://www.liveworksheets.com/w/en/english-second-language-esl/815115

https://www.liveworksheets.com/w/en/special-education/657802

DIFFICULT

https://www.liveworksheets.com/w/en/english-second-language-esl/1925314