3. She can't sing this song. She doesn't know
1)the words
2)words

words

Объяснение:

1)  the  other day we got a request for an office equipment.2)      we make a technological equipment.    3)we can not accede to your suggestion, because we have a lot of orders.4)  our firm is interested in the purchase of your computers. i would like to discuss the terms of delivery and future contract with you    .5)  month we sign a contract with this firm. they will begin to supply with the machines in two months