Fill in the blanks. Answers Edison is credited with the invention of the phonograph. It is dangerous to skate on thin ice. She devised a… Continue reading

This grammar exercise tests your ability to form negative sentences in English. In English, we make negatives by putting not after an auxiliary verb. Use… Continue reading

Fill in the blanks using the present or past participle form of the verb. Answers Boring teachers make bored students. He swept the fallen leaves… Continue reading

Fill in the blanks with an appropriate tense form. Answers I was surprised to find him there. Who left the door open? They have done… Continue reading