Употребите глагол,данный в скобках,в указанном времени
1 Russian scientists (to make) a remarkable contribution to the study of the theory of numbers and probability theory (present perfect)
2 Before world war II people (to have) television sets (past indefinite)

2

Ответы и объяснения

2013-09-14T11:02:44+04:00
2013-09-14T11:03:59+04:00