TO EXERCISES
I
Alex lived in Canada until 1990.
Alex has lived in England since
1990.
Alice lived in France until
1991.
Alice has lived in Switzerland since 1991.
Carol worked in a hotel from
1990 to 1993.
Carol has worked in a
restaurant since 1993.
Gerry was a teacher from 1983
to 1989.
Gerry has been a salesman since 1989.
Alex has lived in England for......years.
Alice has lived in Switzerland for......years.
Carol worked in a hotel for
three years.
Carol has worked in a
restaurant for......years.
Gerry was a teacher for six yean.
Gerry has been a salesman for ......years.
2		
until	9	since
for	10 until	
since	11	for
Until	12	until
for	13	Since
for	14	for
until		
UNIT 98		
.1		
after lunch
before the end
during the course
before they went to Australia
during the night
while you are waiting
after the concert
1.2
i while * for
5 while
6 during
7 while
8 for
9 during 10 while
98.3
2 eating
3 answering
4 having/taking
5 finishing/doing
6 going/travelling
98.4
2 John worked in a bookshop for two years after leaving school.
3 Before going to sleep, I read a few pages of my book.
4 After walking for three hours, we were very tired.
5 Let's have a cup of coffee before going out.
99.1
2 In the box.
3 On the box.
4 On the wall.
5 At the bus stop.
6 In the field.
7 On the balcony.
8 In the pool.
9 At the window.
10 On the ceiling.
11 On the table.
12 At the table.
99.2
2 in
3 on
4 in
5 on
6 at
7 in
8 in
9 at
10 at
11 in
12 at
13 on
14 at
15 on the wall in the living room
UNIT 100
100.1
2 At the airport.
3 In bed.
4 On a ship.
5 In the sky.
6 At a party.
7 At the doctor's.
8 On the second floor.
9 At work.
10 On a plane.
11 In a taxi.
12 At a wedding.
100.2
2 in 9 in
3 in 10 in
4 at 11 on
5 at 12 on
6 in 13 at
7 at 14 in
8 at 15 on
I  UNIT 101	
101.1	
2 to	6 to
3 in	7 to
4 to	8 in
5 in	
101.2	
3 to	
4 to	
5 at home ... to work	
6 at	
7 — (no preposition)	
8 to	
9 at	
10 at a restaurant ... to the hotel	
101.3	
2 to	9 to
3 to	10 at
4 in	11 at
5 to	12 to Mary's house
6 to	... at home
7 at	13 — (no preposition)
8 to	14 study at... go to
!88]