21) There are fire trucks outside. What do you think
a) is happened
b) has happened
C) would happen
d) did happen
22) I
for seven hours last night.
a). was slept
b). Slept
c)has slept
d). Will sleep

*meditation

*music

*reading

*playing games

*going out to eat

one thousand and one nights, also known as arabian nights is a collection of stories whose basic structure is that of embedded narrative. this technique refers to a main story which works as the common frame - or framing narrative - for the other stories, and then this series of stories which are connected to the main one. this technique can also be referred to as a story within a story. the stories stem from the original tale, some begin and end on their own, some are connected to the previous or following one, by means of questions that are answered in the subsequent tale, or characters which reappear.

answer: a mother fears that the poor lighting poses a danger to the children who play there.

the answer would be c   i believe thats the most reasonable answer