Exercises -ing forms

After watching the prezi, you can do this activities:

Complete the following sentences with the correct form of the verbs in brackets.
At the end of this section you'll find the answers.We saw him _____________ (swim) across the pond.
I _______________ (watch) her painting Sarah's portrait last year.
I couldn't hear her _____________ (sing) because of the noise.
I would like to see you ______________ (knit)sometime.
She sat ______________ (look) at the sea.
He _________________ (walk) reading his newspaper everyday.
I cook ______________ (listen) to the radio.
Sally _____________________ (lay) listening to the bugs in the grass in the afternoon.

ANSWERS:We saw him swimming across the pond.
I watched her painting Sarah's portrait.
I couldn't hear her singing because of the noise.
I would like to see you knitting sometime.
She sat looking at the sea.
He walks reading his newspaper.
I cook listening to the radio.
Sally lays listening to the bugs in the grass.