Complete the following sentences with the correct form of the words in brackets

EX4. Complete the following sentences with the correct form of the words in brackets.

1. It  is __________   in  America  to  eat  turkey  on  Thanksgiving  Day. (tradition)

2. What forms of    _________  you participate in during the festival? (entertain)

3. The hall looked very __________with its Christmas tree. (festival)

4. Her eyes were wide with __________when she heard the news. (excite)

5. The Chinese New Year marks the __________of spring and the start of the Lunar New Year. (begin)

EX6. Use the correct form of the words given to complete the sentences.

1. The calories in the food we eat are a form of (chemistry) ___________ energy.

2. She said that it was (polite)  ___________ of him to ask her age.

3. Apple Inc., has been one of the (lead) ___________in the computer software field.

4. He has carried out extensive research into (renew)  ___________ energy sources (such as the water or wind energy).

5. My brother works as a lab (technique) ___________ at a large company.

6. A scientist who studies numbers, shapes, amounts, and their relationships is a (mathematics) ___. 

EX 4. Put the verbs in brackets in the correct tenses.

1. The four planets closest to the sun – Mercury, Venus, Earth, and Mars - (be) ____________called the terrestrial planets because they have solid, rocky surfaces.

2. Our grandparents (come)____________ to stay with us next weekend.

3. People (wonder)  ____________ for ages whether we are alone in the universe.

4. This time next week, we (take)___________ an English test.

5. By the end of this year, I (learn) ____________ English for 6 years.

6. By the end of this century, scientists (discover) ___________ intelligent life.

7. Beagle 2 - the first British spaceship to Mars - (look for)_____signs of aliens this time next month.

8. Astronauts (travel) _____________ to planets outside our solar system by 2050.

9. I expect your English (improve)  __________ a lot by the time you got back from England.

10. NASA (develop)___________ new aircraft to replace space shuttles by the end of this decade.