1

A: The American and Canadian dollar coins were introduced around the same period.

B: The Canadian dollar coin become available much later than the American one. 

2

A: The Canadian coin matched that of the already-circulating United States dollar.

B: The Canadian coin was like that of the previous circulating United States dollar.

3

A: The nickel version was 32.1 millimetres in diameter and was itself smaller than the silver version.

B: The nickel version was 32.1 millimetres across and was itself taller than the silver version.

4

A: Vending machine operators were lobbying to replace the dollar banknotes. 

B: Vending machine operators were striking to get rid of the dollar banknotes. 

5

A: The new dollar coin would be launched the following year.

B: The new dollar coin would begin circulation the following year.

6

A: Fearing counterfeiting, the government approved a new design for the reverse.

B:  Engaging counterfeiting, the government approved a new design for the reverse. 

7

A:   They expected to make up to $40 million a year on the coins.

B:   They expected to lose up to $40 million annually on the coins.

8

A:  Its gold colour differed from the silver-coloured Anthony dollar.

B:  Its gold colour contrasted with the silver-coloured Anthony dollar.

9

A: The Royal Canadian Mint had commenced working on a new style for the dollar coin.

B: The Royal Canadian Mint had ceased work on a new composition for the dollar coin.

10

A: Bills had a lifespan of less than a year  but coins would last two decades.

B: Coins had a lifespan of less than a year but bills would last two decades.