Выберите вспомогательный глагол.
1. How many district courts (are/is) there in different parts of the USA? - There (is/are) about ninety.
2. Who (is/was/has) come?
3. He (is/had/was) waiting for you the whole day yesterday. Why didn’t you come?
4. What language (do/are/does) they speak in Holland?
5. (Is/do/does) the Queen act on the advice of the Prime Minister appointing the Lord-Chancellor?