1 Is Max playing tennis now?
2 What is Max playing now?
3 Is Max playing tennis or football now?
4 Who is playing tennis now.
5 Max is playing tennis now, isn't he?
1 Will he buy a car?
2 Will he buy a car or a bicycle?
3 Hw will buy a car, won't he?
4 Who will buy a car?
5 What will he buy?
Ответ:
We always walk a dog in the park
<span>September 1 is knowledge Day, and so will soon will need to sit behind desks to do homework, have fun at recess and wait for the next call to the lesson.First we meet with the class teacher and friends give flowers and read poems about school. This day is always very noisy and cheerful. Sounds beautiful music, and in the hands of you guys have a lot of colorful balloons and beautiful bouquets. The first of September is also a sad day because summer vacation ended, and until next summer, far away.</span>
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.
Используйте паст симпл(настоящее прошедншее время was were+V2(ed) и Рресент перфект(настоядее завершенное)(have has+V3)(ed)