Задайте вопросы к предложениям, начиная их словами в скобках: 1. The boys usually keep regular hours. (What) 2. A first-years student has been answering the teacher’s questions for an hour already. (How long) 3. Alex’s fellow-student had read the book before the seminar began last week. (When) 4. Laboratory assistants equipped a new complicated experiment last week. (What kind of…) 5. Researchers will meet at the scientific conference next month. (Where)

1what do the boys usually keep?
2How long has a first-year student been answering the teachers question
already?
3When had Alexs fellow-student read
the book?
4What kind of expiriment did laboratory assistants equip last week?
5Where will researchers meet next
month?