Choose the correct variant:

1.
have been walkking
have been walking
have been walkingg

2.
have be studying
have been studying
have been studyeing

3.
has been learning
has been learnning
has be learning
Choose the right negative form:

1.
They no have been surfing the net all morning.
They have not been surfing the net all morning.

2.
Andrew hasn’t been cooking since Monday.
Andrew hasn’ been cooking since Monday.

3.
John has not been sending SMS since Friday.
John has been sending not SMS since Friday.
Identify and write the type of sentences (positive, negative, question):

1. We have been preparing for our exam since morning.

2. Have they been surfing the Net all morning?

3. Has Sam been shopping for 3 hours?

Choose the right variant:

1.
Carl have not been listening to the teacher for the last ten minutes.
Carl has not been listening to the teacher for the last ten minutes.

2.
We have not been phoned the whole evening.
We have not been phoning the whole evening.

3.
Jack has not been dance the whole evening.
Jack has not been dancing the whole evening.
Write the full verb form of Present Perfect Continuous:

1. I
for my client for 2 hours. (wait)

2. Emily
on the computer for too long. (work)

3. Frank
for the last 20 minutes. (dream)

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