D

a

had run - cam

will be discovered

is walking

9 Samuel has kept a diary since 1997

10 It's ten years since Robert and Catherine got married

11 The questions haven't been answered yet

12 It's interesting to learn English

D

C

A

D

B

C

D

A

A

D

d - a - d - c - a - a - c - c 

C - B - B - D - A - C - B - D 
D -> ISN'T HE
A -> ANGRY
D -> LOOK AFTER

industrialize

D - C 
C - A
C - A - D - A - B - D - B - A - C - A 
C - A

alternatively

symbolizes

hiking

inexperienced

attendances

believable