TU LUAN K10 HK1

When did you start participating in volunteer activities to help your community?

• How long did you participate in volunteer activities to help your community?

• How long have you participated in volunteer activities to help your community?

• When have you participated in volunteer activities to help your community?

• When do you participate in volunteer activities to help your community?

She began volunteering at the local shelter two years ago.

• She has volunteered at the local shelter for two years.

• She has volunteered at the local shelter two years ago.

• She volunteered at the local shelter since two years.

• She is volunteering at the local shelter for two years.

The last time they had a family gathering was three months ago.

• They didn't have a family gathering for three months.

• They haven't had a family gathering for three months.

• They haven't had a family gathering three months ago.

• They hadn't had a family gathering for three months.

They started planting trees to protect the environment in 2010.

• They plant trees to protect the environment since 2010.

• They have planted trees to protect the environment since 2010.

• They had planted trees to protect the environment since 2010.

• They have been planting trees to protect the environment in 2010.

They started composing songs when they joined the band.

• They composed songs since they joined the band.

• They have been composing songs since they joined the band.

• They have composed songs since they joined the band.

• They are composing songs since they joined the band.

They started developing this technology five years ago.

• They developed this technology since five years.

• They have been developing this technology for five years.

• They have developed this technology for five years.

• They develop this technology five years ago.

My family has never traveled to such a remote area before.

• This is the first time my family travels to such a remote area.

• This is the first time my family has traveled to such a remote area.

• My family travels to such a remote area for the first time.

• My family had never traveled to such a remote area before.

John hasn't played the piano since 2015.

• The last time John has played the piano was in 2015.

• John didn't play the piano in 2015.

• The last time John played the piano was in 2015.

• John hasn't played the piano in 2015.

They have worked on the project since last year.

• They started working on the project last year.

• They started to work on the project since last year.

• They have been working on the project last year.

• They worked on the project last year.

They came to live in London two years ago.

• They are living in London for two years.

• They have lived in London for two years.

• They lived in London since two years ago.

• They were living in London two years ago.