Put the verbs in brackets into the Present Perfect Continuous Tense 1) Tony (to write) the  letter for an hour. 2) They (to cycle) for a long time.  

Put the verbs in brackets into the Present Perfect Continuous Tense

1) Tony (to write) the  letter for an hour.

2) They (to cycle) for a long time.

Ответ:

1)Tony has been writing the letter for an hour.

2/They have been cycling for a long time.

Источник: https://znanija.com/task/192977