Например: Ted is playing football. (for an hour)

Ted has been playing football for an hour.

1. It is raining. (ever since morning)

It .. ever since morning.

1. is

2. has

3. are

4. have

5. rains

6. been

7. raining

8. rained

2. Jane is talking on the phone. (for a whole hour)

Jane .. on the phone for a whole hour.

1. is

2. has

3. are

4. have

5. talk

6. been

7. talking

8. talked

3. Mr. Greene is looking through papers. (since we came)

Mr. Greene .. through papers since we came.

1. is

2. has

3. are

4. have

5. looked

6. been

7. looks

8. looking

4. I am writing a letter. (for half an hour)

I .. a letter for half an hour.

1. am

2. is

3. have

4. has

5. been

6. writing

7. written