2) I have not been having a good time at my new school.

3) He's sweating because has has been running for two hours.

4) Has he been doing homework this morning?

5) They have not been learning French for very long.

6) She's very upset. She has been crying for 20 minutes.

7) There's a horrible smell in the kitchen! What have you been cooking?

8) We have been watching TV since 2 o'clock.

9) He's shivering because he has been swimming and the water's very cold.

10) Why have you been sleeping? There's work to do!

semoga membantu!