Cover of English Grammar in Use

Упражнение 9.4

Unit 9 - Present perfect continuous·English Grammar in Use

Въпрос

Put the verb into the present continuous (am/is/are + -ing) or present perfect continuous (have/has been + -ing).

Виж отговора
← Exercise 9.3

Още упражнения в Unit 9 - Present perfect continuous

Ex. 9.1
Ex. 9.2
Ex. 9.3