Complete the sentences with the correct form of the verbs. Use Present Continuous 1. Please, be quiet. I (work).
2. They (build) a new theatre in the city centre at the moment
3. She (leave) for Paris on Saturday
4. Oh, I've lost my keys again! - You (always/lose) your keys!
5. The weather is nice at the moment. It (not/rain)
6. You can turn off the television. I (not/watch) it.
7. What (you/do) tonight?
8. What (he/say). I can't hear anything

This hi-tech bikini (1) contains small solar panels (2) which can power your iPod, so you can listen to music all day while you're on the beach. Andrew Schneider, the designer (3) who created the idea, (4) is working on a pair of solar shorts too. Apparently, these can create enough energy to cool your drinks. Obviously, the solar panels only work in places (5) where the sun shines. But Schneider (6) doesn't think that's a problem, because people hardly ever (7) go to the beach if it isn't sunny. Just be careful if you (8) like swimming. Remember to dry your bikini completely before you plug in your music!

Напомню, has используется при HE, SHE, IT.

Утвердительное.
S have/has been Ving (глагол в ing'овой форме).
Например, They have been playing tennis for two hours - Они играют в теннис уже два часа.
FOR - это продолжительность действия. FOT TWO HOURS - это два часа.

Отрицательное.
S have/has not been Ving.
He has not been playing tennis for two hours.

Вопросительное.
Wh? (вопрос) have/has S been Ving?
How long have they playing?

Кроме FOR, в past perfect progressive используют SINCE (с какого-то момента).
К примеру, He has been writing a letter since 5 o'clock - Он пишет письмо с пяти часов.
Или: They have been talking since morning - Они разговаривают с самого утра.

Что сказать о собой форме Present Perfect Progressive? Она используется только на письме. Ну, редкие случаи бывают, когда используют в разговорной речи, но это редко и только в случае вопроса по типу how long have thay Ving (что-то делают)?