Present Perfect vs Present Perfect Continuous_NMT

Choose the right tense form.

Nina (learn) ________ English for 2 years.

Choose the right tense form.

The birds (fly) ________ to the South.

Choose the right tense form.

They (know) ________ him for many years.

Choose the right tense form.

Mike (forget) _________ to learn the poem.

Choose the right tense form.

The children (watch) ___________ cartoons for 2 hours.

Choose the right tense form.

The train (come) ____________.

Choose the right tense form.

She (teach) _______________ at this school for twenty years.

Choose the right tense form.

David (paint) ____________ in his studio since 10 o’clock.

Choose the right tense form.

Scientists (identify) ____________ a new species of animal in the rainforest of Borneo.

Choose the right tense form.

Recently divers (manage) ___________ to reach the reefs

and take photographs.