I had an English test today.. Would you please help me to correct my answers:

Here is the qustions:

The first page: http://www.mediafire.com/view/56u8oyzhh73en4a/E1.jpg

The second page: http://www.mediafire.com/view/orr9ch78h0g82jk/E2.jpg

 

My answers were:

1- D
2- A
3- B
4- C
5- D
6- A
7- C
8- A
9- A
10- C
11- D
12- B
13- C
14- C
15- A
16- C
17- B
18- A (was based on)
19- D
20- B
21- D
22- B
23- D
24- C
25- D
26- C
27- B
28- B
29- B
30- B
31- D
32- B
33- A
34- A
35- B
36- C
37- A
38- B
39- C
40- D
41- C
42- C
43- A
44- D
45- C
46- D
47- D
48- A
49- C
50- B

 

The test was pretty easy but #43 has confused me very much..

Would you please say if you're a native speaker or not ^_^

Thanks in advance