Make the sentences negative and interrogative. 1) They have been building the house for three years now. 2) He has been looking for a job for four months. 3) You have been studying this report for an hour. 4) Susan has been learning to drive since last month. 5) We have been shopping since early morning. 6) Mike has been cycling for three hours. 7) You have been sunbathing since 8 o’clock. 8) The baby has been sleeping for three hours. 9) Nick has been waiting for you since 5 o’clock. 10) They have been writing a test for two hours.

1) They have been building the house for three years now.

– they haven't been building the house for three years now.

– have they been building the house for three years now?

2) He has been looking for a job for four months.

– He hasn't been looking for a job for four months.

– has he been looking for a job for four months?

3) You have been studying this report for an hour.

– You haven't been studying this report for an hour.

– have you been studying this report for an hour?

4) Susan has been learning to drive since last month.

– Susan hasn't been learning to drive since last month.

– has Susan been learning to drive since last month?

5) We have been shopping since early morning.

– We haven't been shopping since early morning.

– have we been shopping since early morning?

6) Mike has been cycling for three hours.

– Mike hasn't been cycling for three hours.

– has mike been cycling for three hours?

7) You have been sunbathing since 8 o’clock.

– You haven't been sunbathing since 8 o’clock.

– have you been sunbathing since 8 o’clock?

8) The baby has been sleeping for three hours.

– The baby hasn't been sleeping for three hours.

– has the baby been sleeping for three hours.

9) Nick has been waiting for you since 5 o’clock.

– Nick hasn't been waiting for you since 5 o’clock.

– has Nick been waiting for you since 5 o’clock?

10) They have been writing a test for two hours.

– They haven't been writing a test for two hours.

– have they been writing a test for two hours?