Activity 11. Circle the mistakes

a.- The hippo **is** swimming in the river. b.- My brothers **are** playing videogames. c.- John **is** doing his homework at home. d.- The dog **is** jumping in the street. e.- It **is** snowing in the mountains. f.- My cousins **are** playing football in the garden. g.- Julia **is** writing a text in class. h.- My sister is speaking Japanese very well. (no mistake) i.- Matthew **is** going to the cinema. j.- My dad **is** watching television. **Explanation:** Activity 11 requires us to find mistakes in sentences using the present continuous tense. The present continuous tense is formed using a form of the verb 'to be' (am, is, are) followed by the verb ending in '-ing'. The verb 'to be' must agree with the subject of the sentence. * **a.** 'The hippo' is singular, so we use 'is' instead of 'are'. * **b.** 'My brothers' is plural, so we use 'are' instead of 'is'. * **c.** 'John' is singular, so we use 'is' instead of 'are'. * **d.** 'The dog' is singular, so we use 'is' instead of 'are'. * **e.** 'It' is singular, so we use 'is' instead of 'are'. * **f.** 'My cousins' is plural, so we use 'are' instead of 'is'. * **g.** 'Julia' is singular, so we use 'is' instead of 'are'. * **h.** The sentence is correct. * **i.** 'Matthew' is singular, so we use 'is' instead of 'are'. * **j.** 'My dad' is singular, so we use 'is' instead of 'are'.