Ответ:

1) Roy had finished classes by 4 p.m. yesterday.

2) Sally had played the guitar by 7 p.m. yesterday.

3) Harry had bought a dictionary by 6 p.m. yesterday.

4) Rose had washed her uniform by 5 p.m. yesterday.

5) Ada had had breakfast by 9 a.m. yesterday.

6) Peggy had cleaned the flat by 11 a.m. yesterday.

7) Nick had watched a film on TV by 10 p.m. yesterday.

8) Philip had done his homework by 8 p.m. yesterday.

Перевод: 1) Рой закончил занятия к четырём часам вчера. 2) Салли поиграла на гитаре к семи часам. 3) Гарри купил словарь к шести часам. 4) Роуз постирала форму к пяти часам. 5) Ада позавтракала к девяти часам утра. 6) Пегги убрала квартиру к одиннадцати часам утра. 7) Ник посмотрел фильм по телевизору к десяти часам вечера. 8) Филипп сделал домашнюю работу к восьми часам вечера.