Articles and prepositions

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I think the computer is such (1) ... useful invention. Take e-mail, for example. It is a very easy way to write letters. When I was younger, I rarely ever put pen to (2) ... paper, not even to say ‘thank you’ for presents sent by my relatives. Now, though, you can’t keep me away (3) ... the keyboard. I can spend hours typing away (4) ... my computer, all types of messages to all types of people. One of (5) ... worst disadvantages for me of writing (6) ... hand was always the embarrassment of knowing that people would criticise my untidy handwriting and careless spelling. Now thanks (7) ... the spell-check, I can easily edit my letters. Teenagers nowadays take all this (8) ... granted, they don’t realise how fortunate they are.

1.

1) a 2) an 3) the 4 ) —

2.

1) a 2) an 3) the 4) —

3.

1) from 2) of 3) off 4) —

4.

1) at 2) on 3) with 4) in

5.

1) a 2) an 3) the 4) —

6.

1) by 2) in 3) at 4) with

7.

1) for 2) to 3) by 4 ) —

8.

1) at 2) by 3) for 4) on