Unit 1
Ex14) 1-f 2-d 3-a 4-c 5-b 6-e

Ex15) 1.works
2.is directing
3.is staying
4.is flying
5.leaves
6.likes
7.hates
Unit 2
Ex13) 1.who
2.whose
3.who
4.which
5.which

Ex14) 1.who`s
2.whose
3.who`s
4.whose

Ex15) 1.A shark is animal which eats meat.
2.A builder is someone who build flat.
3.A doctor is someone who health people.
4.Washing machine is machine which washes clothes.
5.Camera is machine machine which take a photo.

Ex18) 1.with
2.with
3.her
4.is
5.likes
6.most
7.in
8.is

Unit 3
Ex10) 1-b 2-a 3-d 4-f 5-c 6-e

Ex11) 1.was having,was stealing
2.has been repaired
3.has been lying
4.were exploring,was appearing
5.was skiing,was breaking
6.has been working

Ex13) 1.ago
2.for
3.ever
4.never
5.since
6.already
7.yet
8.while
9.when
10.so far

Ex14) 1.We haven`t been fishing since last summer.
2.It`s the first time she has eaten Chinese food.
3.How long is it since he went to Naples?
4.We haven`t eaten out for a long time.'
5.He hasn`t been to Delhi for 5years.

Unit 4
Ex17) 1.The island was so peaceful that we felt completely relaxed.It was such a peaceful island that we felt completely relaxed.
2.The museum was so amazing that we spent a whole day there.It was such an amazing museum the we spent a whole day there.
3.The hotel was so noisy that I didn`t sleep.It was such a noisy hotel that I didn`t sleep.
4.The streets were crowded that we missed the appointment.Its were such crowded streets that we missed the appointment.

Unit 5
Ex7) 1-c 2-a 3-e 4-d 5-b

Ex9) A 1.was looking
2.was
3.were running
4.saw
5.gasped
6.was walking
7.began
8.realised
9.were staring
B 1.was raining
2.was blowing
3.was walking
4.was
5.were
6.heard
7.was getting
8.turned
9.saw
C 1.was working
2.was digging
3.found
4.opened
5.was being
Ex10) 1.He was running fast,carrying a big box.
2.They were standing at the edge of the cliff,admiring the view.
3.Tim was watching TV,eating his supper.
Ex11) 1.sailing
2.enjoying
3.blowing
4.trying
5.making
6.talking
7.crashing
8.sitting
9.helping

Unit 6
Ex7) 1-b 2-c 3-a

Ex8) 1.had already started
2.had shown
3.had been traveling
4.had been typing
5.had saved
6.had been practicing
7.had been looking
8.had left

Ex10) must=have to
mustn`t=don`t have to
are not allowed to=needn`t
Ex11) In the museum,you
a.mustn`t take photos
b.must buy a guidebook
c.needn`t leave your bags at the door
d.mustn`t touch the exhibits
In the hotel,you
a.mustn`t disturb the other guests
b.must leave the room by 12:00
c.needn`t tidy your room
d.mustn`t leave any valuable in the room
Ex13) Hippos are bigger teeth than giraffes.
Hippos are bigger mouth than giraffes.
Hippos are as heavy as giraffes.
Hippos are longless neck than giraffes.
Hippos aren`t as tall as giraffes.
Hippos are fatter than giraffes.
Hippos are run fastless than giraffes.
Hippos are as dangerous as giraffes.

Unit 7
Ex12) 1.Fiona`s eyes were red.She had been weeping for all night.
2.Tim felt exhausted.He had been working in the field for 3 hours.
3.John was dirty.He had been fixing his car for hours.
4.Ann felt sleepy.She had been watching TV for all night.

Ex13) 1.got,had prepared
2.took,had been working
3.was,had ever seen
4.entered,had drawn
5.had finished,called
6.arrived,had left
7.had been traveling,had decided
8.had been,had turned on