Как раскрыть скобки ?1)Four people (sit) at a table.2)They (have) dinner.3)They

1) Four people are sitting at a table.

2) They are having dinner.

3) They are wearing smart clothes.

4) The man is wearing a suit.

5) The parents are smiling at each other and they are talking.

6) The children are listening.

7) The girl is drinking some wine.

8)The boy is eating some bread.

9) They are enjoying their meal.

Предложения написаны во медли Present Continuous Tense.  После подлежащего нужно избрать верную форму to be и добавить окончание -ing к глаголу.

Is - употребляется с третьим лицом единственного числа (he, she, it);

Am - только с I;

Are - во всех других случаях (you, we, they).