Ответ:

1.1they do their homework everyday

1.2 the doing their homework now

1.3 they did their homework

1.4 they did their homework 2 days ago

1.5 they will do their homework tomorrow

2.1 she plays well on guitar

2.2look! she is playing guitar

2.3 she hasn't play guitar yet

2.4 she played guitar in the past week

2.5 she will play guitar on the next week