Глаголы в скобках поставить в нужную временную форму Past Simple или Past Continuous 1. The steam engine … (to appear) in 1763 2. I (not to go) out last night because it (to rain). 3. Mendeleev … (to create) his Periodic Table in 1871. 4. They (to come) in when I (to have dinner) with my friend. 5. Ecological problems … (to appear) in the XX century.