It’s ok the exercise? ^.^

I have to decide in this exercise which answer (A, B, C or D) best fits each gap.. Can you please help me if I make mistakes?

Chicago, which is situated beside Lake MIchigan, is famous for its shops. North Michigan Avenue has all the top designer shops, plus what is claimed to be the world's best popcorn store, Garrett's, which is so popular that people sometimes have to queue for hours to get (1) .....D..... . Chicago (2) .....D..... shopping seriously, and sees it as the (3) .....C...... to its success as far as attracting tourists is (4) ....A..... .

The downtown area of Chicago has several well-known department stores. At Marshall Field's, for example, you can see some of the (5) .....C...... while doing your shopping, for the store has many famous (6)......C.......... including a restaurant , the walls of which would not be out of (7).....A....... in an art gallery.

Apart from shops, Chicago has some of the world's tallest buildings, notably the John Hancock Center and the Sears Building. They are both (8)......D........ seeing, but if your time is (9) ......A...... , head for the restaurant at the top of the John Hancock Center, where the prices are very (10).........B....... . The lift to the restaurant travels the 100 storeys in a couple of minutes. The lift's movement is so (11)..........B....... and quiet that you hardly ever (12).........C....... it.

1 A offered B dealt C assisted D served

2 A puts B makes C finds D takes

3 A answer B clue C key D explanation

4 A concerned B included C affected D referred

5 A reflections B scenes C spectacles D sights

6 A items B features C pieces D aspects

7 A place B location C position D space

8 A important B valuable C useful D worth

9 A short B little C spare D few

10 A mild B reasonable C easy D adequate

11 A slight B smooth C silent D soft

12 A remark B realise C notice D observe