Use the right prepositions (in or fol} in the following sentences:
(I) ... comparison with telex, e-mail is relatively low ... cost.
(2) Messages can be sent or picked up anywhere ... the world.
(3) This can be advantageous ... users who are communicating across international time zones.
( 4) All the messages can be stored ... the mailbox.
(5) A message ... German Shipping Lines is quoted.
(6) The shipbroker asks if the vessel will be ... Rotterdam ... loading on the specified day.
(7) E-mail messages can be sent ... various languages.
(8) It was necessary ... me to send a few e-mail messages yesterday.

1. Natural wonders of the world are spoken about in the programme "Discovery".  2. Films about nature will be shown on this channel.  3. Sharon will be given a chance to travel to Lake Baikal.  4. Loch Ness monster had been seen by the Scottish Saint Columbia in the 5th century.  5. Lake Baikal had been formed 30 million years ago.  6. These photos were taken by my brother when he travelled to Siberia.  7. Little had been known about the north of our country three centuries ago.  8. First maps were made by travellers in the ancient times.  9. New plants and animals are found in nature every year.  10. Kamchatka national parks are protected by UNESCO. 

1. Natural wonders of the world (are spoken about) in the programme "Discovery. (Present Simple) .

2. Films about nature (will be shown) on this channel. (Futures simple).

3. Sharon (will be given) a chance to travel to Lake Baikal. (Future simple).

4. Loch Ness monster (was seen) by the Scottish Saint Columbia in the 5th century.

5. Lake Baikal (was formed) 30 million years ago.

6. These photos (were taken) by my brother when he travelled to Siberia.

7. Little (was known) about the north of our country three centuries ago.

8. First maps (were made) by travellers in the ancient times.

9. New plants and animals (are found) in nature every year.

10. Kamchatka national parks (are protected) by UNESCO.