GRAMMAR
1 b 6 b 11 c
2 c 7 a 12 b
3 a 8 c 13 a
4 c 9 a 14 b
5 c 10 c 15 a
VOCABULARY
a 1 genetics 3 neighbourhood 5 death
2 scientific 4 loneliness
b 1 overpopulated
2 mispronounced
3 multinational
4 autobiography
5 underpaid
c 1 loss 6 staff
2 set up 7 rise
3 leader 8 side
4 launch 9 carry
5 branches 10 guinea
d 1 quiet 3 later 5 never
2 sound 4 order
PRONUNCIATION
a 1 neighbourhood 3 research 5 colleague
2 prove 4 launch
b 1 biological 3 multicultural 5 manufacture
2 physicist 4 increase
CAN YOU UNDERSTAND THIS TEXT?
a Billy Ray Harris feels surprised and sad.
b 1 b 3 a 5 a 7 a 9 c
2 c 4 c 6 c 8 b 10 b
VIDEO CAN YOU UNDERSTAND THIS FILM?
5 .45
1 radio waves
2 biologists
3 blackboard, Oxford / 1931
4 1925, scientific instruments, astronomy
5 sun, moon, stars
6 time, angles
7 world, stars
8 silver, George III