Задание

Find the grammar mistakes in the sentences. Write the correct verb forms

Linda looks really tired as she has worked since 5 o'clock in the morning.

Mr Johnson is free now because he has been finishing the work on the project.

How long has Henry studied History at the college?

I've just been seeing my colleague in the travel agency.

I have dusted the furniture most of the afternoon.

It seems that Kate has been being in here for many hours.

We have discussed this issue since the previous month.