1.there ______ several bad accidents at this corner recently. a. are b. have been c. were 2. the latest surgical instruments ____ during this unique operation. a. were used b. had used c. had been used
1.there ______ several bad accidents at this corner recently.
a. are b. have been c. were
2. the latest surgical instruments ____ during this unique operation.
a. were used b. had used c. had been used
Гость
Ответ(ы) на вопрос:
Гость1. have been
2. were used
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