Определите функции глаголов to have, to be, to do 1. sms is one for the most-used services in second-generation mobile telecommunications systems. 2. portability does in fact promote competition, it drives down prices, and keeps providers competitive. 3. we have a lot of problems with existing equipment. 4. however, this methodology has proven to be disadvantageous to the catv companies, because it is extremely difficult to send signals upstream. 5. my friend is to finish working at the mashine by june.
2. Portability does (вс усилительный) in fact promote competition, it drives down prices, and keeps providers competitive.
3. We have (смысловой) a lot of problems with existing equipment.
4. However, this methodology has (вс часть сказуемого) disadvantageous to the CATV companies, because it is (сказуемое, глагол-связка) extremely difficult to send signals upstream.
5. My friend is (сказуемое, эквивалент модального) to finish working at the mashine by June.