`1`/

`->`It is able to store solar energy on clody days.

`->` Solar energy can be stored on cloudy days.

`2`/ 

`->` It is able to watch a lot of interesting programs on TV on the weekend.

`->` A lot of interesting programs on TV can be watched on the weekend.

Công thức:

S + tobe ( am is are ) + able + to V

S + can be + V3 / ed + .... ( câu này thuộc bị động cùng với modals verb )

1.It is able to store solar energy on cloudy days.

  Solar energy can be stored on cloudy days.

2.It is able to watch a lot of interesting programs on TV on the weekend.

  A lot of interesting programs on TV can be watched on the weekend.

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