a và b đâu ra vậy bn

3 câu cuối sai

1.    They ____are helping____________ (help) the teacher right now.

2.    She ______is staying__________ (stay) in a hotel.

3.    I ________________ (travel) a lot these days.

4.    We ________________ (study) science at present.

5.    The children ________________ (play) football in the playground.

6.    Bob ________________ (watch) the news on TV.

7.    My parents ________________ (talk) to the teacher at the moment.

8.    The sun ________________ (shine) today.

Vậy x = -15