1. His parents have never enjoyed travelling by sea. - Present Perfect
By that time his parents had already enjoyed travelling by sea. Past Perfect
By Christmas his parents will have enjoyed travelling by sea. - Future Perfect
2. Susan has never travelled by train. - Present Perfect
Susan had travelled by bus. - Past P. (=Perfect)
By the end of the month Susan will have travelled by train. - Future P
3. Her friends have just travelled by bus round Europe. - Present P
By that time her friends had just travelled by bus round Europe. - Past P.
By the end of the week her friends will have travelled by bus round Europe. - Future P.
4, They have just arrived. - Present P.
By that time they had already arrived. - Past P.
They will have arrived by the end of the week. - Future P.
Ответ:
А)present simple:1,3,5
В)present continuous:2,4,6
<span>1.
In some European countries, tank cars made of reinforced plastic are
used for conveyance of wine and fruit juices.
2. The things left behind
the passengers are usually taken to the Lost Property office.
3. Many
scientists invited to the conference took part in it with great
pleasure.
</span><span>1. В некоторых европейских странах цистерны из армированного пластика используются для перевозки вина и фруктовых соков.
2. Вещи, забытые пассажирами, обычно отправляются в Бюро находок.
3. Многие ученые, приглашенные на конференцию, с большим удовольствием приняли участие в ней.</span>
5. 1. She said she was sorry that she had kept me waiting for a long time .
2. I thought myself that she was right.
3. My first thought was that I had promised to avoid conflicts and would not give up.
4. Carol said that sometimes people behaved in a way we didn't like because they had reasons for it .
6. 1. I wouldn't have forgiven a person who always lies .
2. Mark is the best person to have relashionship with . I can rely on him .
3. I am going to meet for a talk with a lawyer.
4. My birthday is the time when I lay plates full of tasty dishes on the table .
Are, is, is, is, is, am, am, are, are,are