Question

1.Open the brackets and use the verbs in the Past Simple Passive or Present Simple Passive.
1.Steam locomotives (to use) in the past, but they (not to use) today.
2.A lot of experiments (to do) in Chemistry lessons every month.
3.Science subjects (to consider) to be difficult to understand by many students nowadays.
4. The theory of relativity (to develop) by Albert Einstein.​

Answer 1

Відповідь:

Steam locomotives were used in the past, but they are not used today.

A lot of experiments are done in Chemistry lessons every month.

Science subjects are considered to be difficult to understand by many students nowadays.

The theory of relativity was developed by Albert Einstein.

Пояснення:

Answer 2

1. Steam locomotives were used in the past, but they are not used today. (Past Simple Passive, Present Simple Passive)
2. A lot of experiments are done in Chemistry lessons every month. (Present Simple Passive)
3. Science subjects are considered to be difficult to understand by many students nowadays. (Present Simple Passive)
4. The theory of relativity was developed by Albert Einstein. (Past Simple Passive)