Emma is on holiday, so I ... after her cat until she returns a. look b. am looking c. have looked d. looked 6. David... of dressing up as a pirate for the Halloween party next…
Emma is on holiday, so I ... after her cat until she returns a. look b. am looking c. have looked d. looked 6. David... of dressing up as a pirate for the Halloween party next Sunday a. thinks b. think c. is thinking d. are thinking 7. Can you have a look at Ann's computer? She ... to fix it all morning and it still doesn't work a. tried b. has tried c. tried d. has been trying 8. It ... have been John who answered the phone last night; I know there was no one else at home a. might b. must c. can d. may 9. Susan ... abroad before and she was very excited before her first trip to Europe a. has never b. was never been c. had never been 10. I will never forget ... Saint Petersburg for the first time a. to visit b. visit d. was never being c. visiting d. visited 110 Task 4. Read the text and match the headings (A-F) to the paragraphs (1-5). There is one heading you don't need to use. The Tunguska Exposition 1. ... A little over 100 years ago, on the morning of 30th June 1908, there was a huge explosion in the sky above the Tunguska River in Siberia. It was as if a giant bomb had gone off over the area. In fact, the explosion was so powerful that it killed 80 million trees, destroying a natural area of over 13,000 square kilometres in size. 2. ... People who saw the explosion back then all gave similar descriptions of the event: an extremely bright light, as if the sky were on fire, followed by a deafening crashing sound and strong wind. This wind was so strong that it brought down
more trees and caused considerable damage to the surrounding environment.
... Scientists have studied the Tunguska event for many years to understand what caused this enormous explosion. The leading theory is that it was a meteor or comet entering the Earth’s atmosphere and exploding before it reached the ground, releasing energy equivalent to thousands of atomic bombs.
... Despite its massive scale, the Tunguska explosion did not result in any documented human fatalities. This is primarily because the area was sparsely populated. However, the event sparked numerous theories and myths, becoming a topic of fascination for scientists and the general public alike.
... The Tunguska event remains one of the most significant natural phenomena in history, demonstrating the potential for extraterrestrial objects to impact Earth and highlighting the importance of further research into such occurrences.
Headings:
A. The Explosion Event
B. Human Impact and Myths
C. Scientific Investigations
D. Description of the Explosion
E. Historical Significance
F. The Theory Behind the Explosion
Matchings:
- A
- D
- C
- B
- E
Let me know if you need further assistance with any of the tasks or topics!
