Вставьте правильный вариант ответа (вместо пропусков __ ) 1. we __ when somebody __ at the door. a) were talking/was knocking b) had been talking/knocked 2. sasha __at the factory long when he __ a manager. a) had been made/had been working b) had been working/made 3. sally __for two years when she __ the race. a) trained/entered b) had trained/had entered c) had been training/entered 4. it __ and the ground __ white. a) had been snowing/was b) had snowed/was 5. by this death, the composer __ a) had written b) was writing c) had been writing.