1. To get a constant current, you must have its source. 2. A pyrometer is used to measure the temperature of hot metals. 3. Man learned to dissolve atoms in order to receive a large amount of energy. 4. Scientists are trying to solve the problem associated with new phenomena of electricity. 5. Lightning rod-metal device for protecting buildings from lightning. 6. Carrying out experiments with atmospheric electricity was very dangerous at that time. 7. To magnetize an object is to place it in a magnet field.
1. To get a constant current, you must have its source. 2. A pyrometer is used to measure the temperature of hot metals. 3. Man learned to dissolve atoms in order to receive a large amount of energy. 4. Scientists are trying to solve the problem associated with new phenomena of electricity. 5. Lightning rod-metal device for protecting buildings from lightning. 6. Carrying out experiments with atmospheric electricity was very dangerous at that time. 7. To magnetize an object is to place it in a magnet field.
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It isn't an onion
Jasmine isn't a student
We are friends
I amn't hungry
Mark is 20 years old
A bee isn't a big insect
Newsweek is a magazine
I amn't a professional football player
I know you. You are in my class
Cows aren't small. They are big.
Izmir is a city
He is a postman
It is nine o'clock
Manhattan isn't an island
Mr.Richards is a lawyer
I am ill. I amn't happy.
London is a big city
Dave and Adrian aren't sisters. They are brothers.
New York is near to New Jersey.
Susan and I aren't teachers. We are students.