Page 70 - American English File Student Book 3B

modals of deduction: might, can’t, must W e o ften use might / may, can't, o r must to say how sure
o r certa in we are a b o u t so m eth in g (b ased o n the in fo rm atio n
might / may (w hen you th in k s o m e th in g is p o ssib ly tru e) w e have).

W e d on ’t use can instead o f might / may, N O T He can be on the
T o n y ’s phone is tu rn ed off. H e might be o n the 3 44)))
pkme-now.
p lane now , o r ju st b oard in g.
In th is co n te x t the op p osite o f must is can't.
L aura might not like th a t sk irt. I t’s n o t really h er style.
The neighbors must be out. There aren’t any lights on in the
I d on ’t know w here K a te is. S h e may be a t w ork o r at the gym .
house. I The neighbors can’t be out. All the lights are on in the
I’m su rp rised th a t Ted isn ’t h ere. H e may not know th a t the
house. N O T Tlre-rreighbors-nntst-mrt-be-owt
m eetin g is today.

can't (w hen you a re su re s o m e th in g is im p o ssib le / n o t tru e )

B ran d o n can’t earn m uch m oney at h is jo b . H e’s still 3 45)))
living w ith h is p arents.
T h a t w om an can’t be Jack ’s w ife. Ja ck ’s w ife h as dark h air.
The neighbors must be out. There The neighbors can't be out.
aren’t any lights on in the house. All the lights are on in the house.
must (w hen you a r e su re s o m e th in g is tru e )
W e can u se could in stead o f might in affirm a tiv e sen ten ces.
T h e n eig h b o rs must be ou t. T h e re a re n ’t any 3 46)))
Jack could (o r might) be at the party - I’m not sure.
ligh ts o n in the house.
W e o fte n use be + gerund a fte r might / must / can’t.
Y ou r sister must have a lo t o f m oney i f sh e d rives a P orsch e.
They must be having a party - the music is very loud.

a M a tc h th e s e n te n c e s .

H e m ig h t b e A m e rica n . A H e’s c a r r y in g a sp o rts bag.
□
1 H e c a n ’t b e a c o lle g e stu d e n t. B P ie’s c a r r y in g a ca m e ra an d a g u id e b o o k .
2 H e m u st b e co ld . □ C H e ’s lo o k in g a t a m ap .
3 H e m ig h t b e g o in g to th e g y m . □ D H e 's w ea r in g a b a se b a ll c a p .
□
4 H e co u ld b e lo st. E H e ’s lo o k in g a t jo b ad s in th e n ew sp ap er.
5 H e m u st b e m a rrie d . □ F H e is n ’t ta lk in g to an ybod y.
□
6 H e m u st b e a to u rist. G H e is n ’t w e a rin g a su it.
7 H e c a n ’t h e e n jo y in g th e p arty . □ H H e ’s w e a rin g a w ed d in g rin g .
□
8 H e m ay n o t have a jo b . I H e’s n o t old en o u g h .
9 H e c a n ’t b e a b u sin e ssm a n . □ J H e is n ’t w e a rin g a ja c k e t.

b C o v e r 1 - 9 a n d lo o k a t A - J . R e m e m b e r 1 - 9 .

c C o m p le te w ith must, might (not), o r can’t. 6 A W h e r e ’s y o u r c o llea g u e tod ay?
B S h e ________ b e sick . S h e ca lled to say th a t sh e ’s g o in g
A W h a t d o es P e te ’s n ew g irlfrie n d d o?
to th e d o c to r ’s.
B I’m n o t su re , b u t sh e might b e a m od el.
7 A Ja n e is lo o k in g a t you in a v ery stra n g e way.
S h e ’s v ery p retty .
B Y es. I’ve g ro w n a b ea rd s in c e I saw h er la st, so sh e
1 A D o you k n o w a n y o n e w h o d riv es a F e rra ri?
________ re c o g n iz e m e.
B Y es, m y n ep h ew . I d o n ’t k n o w h is salary , b u t he
8 A M y d au g h ter h a s fa iled a ll h er e x a m s a g a in .
________ e a r n a fo rtu n e !
B S h e ________ b e w ork in g very hard i f sh e gets such
2 A W h y d o n ’t you bu y th is d re ss fo r y o u r m o m ?
bad grad es.
B I’m n o t su re. S h e ________like it. It’s a little sh o rt fo r her.
9 A W h y is T in a so happy?
3 A M y siste r w o rk s as a n in te rp re te r fo r th e U n ited
B I’m n o t su re, b u t s h e ________ have a n ew p a rtn er.
N a tio n s.
B S h e ________ sp e a k a lo t o f la n g u a g es to w o rk th ere. 10 A W h e r e ’s th e m a n a g e r’s h o u se?
B I d o n ’t kn ow , b u t h e ________ live n e a r th e o ffic e
4 A D id y o u k n o w th a t A n d y ’s p a re n ts have sp lit up?
b e c a u s e he c o m m u te s ev ery d ay b y tra in .
B P o o r A ndy. H e ________ feel v ery h ap p y a b o u t th a t.
5 A A re your neigh bors aw ay? A ll the w ind ow s are closed. < p .6 0
B I’m n o t su re . I su p p o se th e y ________ b e on v a ca tio n .
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