Present Simple, Present Continuous, Past Simple, Future Simple tenses

J u lia ..... (to sew) a button on her blouse now.

Betty and Sandra ..... (to visit) their relatives in London next

summer.

.. y o u ....... (to know) how to vacuum the carpet?

Can you .....(to help) your sister to decorate a house for a birthday party?

They.....(to be) tired yesterday. They......(to work) in the garden.

The girls .....(to sweep) the floor two days ago.