Question

For centuries weather observing tools were the various human senses - the eye, the nose, the ear. The technology of weather observation (1) be developed in the last seven centuries. The rain gauge, barometer, anemometer, psychrometer and ther­mometer (2) be all invented in the years between 1400 and 1700. These instruments (3) be improved through the years, but even today they are the basic observing tools of weather observers all over the world. However, things have changed. With the de­velopment of the telegraph in the 1840's, then radio and tele­phone, new observing systems such as instrumented balloons, radar and satellites have appeared. They are now part of the range of tools that (4) be used by weather watchers. Thus (таким образом), the quality (качество) of the data, the possi­bilities (возможности) of meteorologists to exchange informa­tion from the weather stations in different regions and the rate (скорость) of this exchange have experienced a huge leap (ска­чок), especially[1] with the appearance of computers. The data collected by different weather observers, (5) be brought to pro­cessing ['prooscsig] computers. The processed ['praosest] infor­mation in the form of forecasts, maps, and even three-dimen­sional models[2] (6) be sent back to weather information users via[3] television, radio, and the Internet. But today nobody can say how weather (7) be predicted in the future, or how accurate­ly it (8) be predicted.

  поставить слова перед каторыми стоит цифра вот например (8)be predicted в Passiv voice

Answer 1

1) was developed 

2) were all invented

3) were improved

4) are used

5) is brought

6) were sent

7) will predicted

8) will predicted