Глагол to be. Правильная форма. Вставьте правильную форму глагола to be: There _____ several kinds of computer. 2. There _____ problems with this program yesterday. 3. There ______ special-purpose & general-purpose computers. 4. There _____ very useful data in that file. 5. ______ there many mistakes in this program? 6. There ____ no any all-purpose computing machine.