Перепишите данные ниже предложения, обусловьте в их видовременные формы глаголов и

Перепишите данные ниже предложения, обусловьте в них видовременные формы глаголов и укажите инфинитив; письменно переведите предложения на российский язык.
1. Melted metals conduct current without any change to themselves.
2. The use of such a machine as the electric motor has become possible owing to the electromagnetic effect.
3. A steam of electrons in a circuit will develop a magnetic field around the conductor along which the electrons are moving.
4. Substances through which electricity is easily transmitted are called conductors.
5. Russian engineers and scientists saw in semiconductors a means of solving an old engineering problem, namely, that of direct conversion of heat into electricity without boilers or machines.
6. The radio-telegraphy was converted from an abstract theoretical problem into a real fact on March 24, 1896.
7. There were a lot of leaves on the ground in the park.
8. The motor will be repaired by the skilled mechanic.