Приложение к уроку по теме Настоящее простое и настоящее длительное время

Подчеркните правильный вариант глагола.

НА ПРИМЕР:

1. I sing / am singing now.

2. The girl speaks / speak / is speaking at the moment.

3. Every day Sam drive / drives / is driving a car.

4. My friends and I play / plays / are playing volleyball sometimes.

5. Tourists visit / visits / are visiting a museum now.

6. We often buy / buys / are buying exotic flowers.