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My hobby
Hobby is what a person likes to do in his spare time .Hobbies differ like testes .If you have chosen hobby according to you character and taste you are locky becouse your life becomes more interesting .The most popular hobby is doing thing ........
1 she was heard to sing a folk song.
2 he was seen to put his coat on.
3 the clock was heard to strike nine.
4 the rider was seen to disappear in the distance.
5 the plane was seen to take off.
6 he was expected to return in a fortnight.
7 she is known to be a talented actress.
8 he is supposed to be a foreigner.
9 he is considered to be a great man.
10 the telegram is expected to be sent tomorrow.
1) During this period the track structure has been substantially improved.
One of the greatest improvements was the elimination of rail joints. In
order to reduce the number of joints the rails are welded into
continuous lengths.These continuous or long welded rails have greater
strength and provide a smoother running of trains at far greater speeds.
2) Another improvement which has made it possible to increase speeds on
railways is the use of concrete sleepers. Thus in some countries ,
concrete sleepers have replaced wooden ones on heavily used main lines
because of their advantages.
Concrete sleepers have a longer life
and a far greater weight than those made of wood. The greater weight of
concrete sleepers provides the greater stability of track.
It is this factor which has greatly contributed to increased speeds.
Ответ взял прямо из текста. Насколько я помню, так надо делать в подобных заданиях.
Ответ:
Are you hungry? I have cooked dinner for you.
I haven't fed the dog yet. It is looking for something to eat in its bowl.
There are a lot of crumbles on the floor. I guess you have not swept it yet.
They cannot go to the cinema with us. They haven't cleaned the house yet.
Mary has washed the dishes and the kitchen is nice to look at.
Объяснение: