هذا الحل ...
p48
3-how many nouns can be......................................
1.detection
2. detective
3.detector

.............................................
B-use each noun in ............
1.my uncle works in a detection center
2.the detective solved the problem of the crims
3.the detector is used in the airport to detect bombs

.................................................. ...................................
4- fill in the blanks................
1.at
2. from - until
3.out
4. through
5. into
6.up
.................................................. .....
5-Underline the mistake in each..................
1.true
2.true
3.true
4.true

.................................................. .................................................. ........
p-49
1- fill in the blanks with the correct word.
1.speed
2.harmful
3.noticeable
4. hazards
5.pedestrians
6.tumors
7.brain
8.recorded

........................................
2-
fill in the table............
.danger - dangerous
accident - accidental
notice - noticeable
fashion - fashionable
harm - harmful
health - healthy
hazard - hazarous
desire - desireabl