подчеркните в каждом
из них глагол-сказуемое и определите его видо-временную форму и залог.

а)   1. Soviet
chemical science is successfully solving many complex problems.

2. Radio astronomy has given mankind efficient means for penetration
into space.

б)   1. Bccqucrcl's discovery was followed by an
intensive research work of Marie and Pierre Curie. 2. Heat energy is transmitted in two
different ways.

а)   1. is solving - Present Continuous Active 2.  has given - Present Perfect Activeб)   1. was followed - Past Simple Passive 2. is transmitted - Present Simple Passive