Exercise 1

*A.

2.     Before a cat learns anything, it first teaches its owner a lesson in humility.

B.

5.     Since I was a child, I've been fascinated by scuba diving.

Exercise 2

1)

a) Sending cards is very popular in North America.

2)

b) Summer is my favorite season.

3)

a) We should raise city taxes.

4)

b) Advances in technology have made the world seem smaller.

5)

b) There are several factors to consider when you choose a university to attend.

Exercise 3

1) Paul and his hobbies 

2)My mother is a good cock

3) I have problems  with my car

4)  my job is great

5)I had the worst vacation ever 

6) Different countries ,different cultures.

7) Autumn weather is the best