Привет! Давай разберемся с заданиями по порядку.
"Large quantities of engineering articles __."
- Подходит c) are being written.
"Where is my blue suit? Sorry, it __."
- Подходит a) is being washed.
"The manager of the hotel said we could not go into our room because it __."
- Подходит d) was being cleaned.
"Mum, are you sure my suitcase __?"
- Подходит b) has been packed.
"I stood near the door, I heard that our luggage __."
- Подходит d) had been packed.
"When we moved to our secret new school, I told friends as soon as __."
- Подходит a) it had been located.
"We understand it would be finished soon __."
- Подходит b) will be taken.
"I assured the boss that all the letters __ and put in envelopes. Our partners would receive them the next day."
- Подходит a) had been answered.
Если что-то непонятно или нужно объяснить подробнее, дай знать!