1 _____ in a tent.

2 Evan _____ recently.

3 She has _____ here since she was a child.

4 Which of the following sentences is grammatically wrong?

5 We can use either "HAVE/HAS" or the short form 'VE/'S.

6 We generally use FOR/SINCE in this tense.

7 The main verb of the sentence is conjugated in Participle.

8 In the negative form, we use isn't - aren't.

9 We write HAVEN'T/HASN'T in the negative form.

10 They _____ working all night long.

11 My doctor _____ studying since she was 20.

12 I _____ hockey for years.

13 Tom _____ reading this book.

14 Have you _____ running lately?

15 Has he been _____ well?