По языку: предложение-the boys were playing basketball at the sports ground at 5 o'clock yesterday. разобрать по- вопросу who? по вопросу -общий. по вопросу-специальный. по вопросу-альтернативный по вопросу- с хвостиком.

The boys were playing basketball at the sports ground at 5 o'clock yesterday.

К подлежащему: Who was playing basketball at the sports ground at 5 o'clock yesterday?

Общий: Were the boys playing basketball at the sports ground at 5 o'clock yesterday?

Специальный: Where were the boys playing basketball at 5 o'clock yesterday? или

When were the boys playing basketball at the sports ground?

Альтернативный: Were the boys or girls playing basketball at the sports ground at 5 o'clock yesterday? или

Were the boys playing basketball or football at the sports ground at 5 o'clock yesterday?

Разделительный: The boys were playing basketball at the sports ground at 5 o'clock yesterday, weren't they?

Who were playing basketball at...?

Were boys playing basketball at...?

What boys were playing at ...?

Were boys playing basketball or football at...?

Were boys playing basketball at..., weren't they?