18.7含蓄虚拟大学课件.pdf

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•4

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if

•Iwouldwritetoher,butIdon’tknowheraddress.

↓

•IwouldwritetoherifIknewheraddress.

+but+

if

•I’mreallyverybusy,otherwiseIwouldcertainly

gotherewithyou.

↓

•IfIwerenotbusy,Iwouldcertainlygothere

withyou.

+or/otherwise+

if

Withoutyourhelp,wewouldn’thavesucceeded

inourexperiment.

hadnothelped

Ifyou________________(help)us,wewouldn’t

havesucceededinourexperiment.

without=butforif

Wedidn’tknowhistelephonenumber,

wouldhavetelephonedhim

otherwisewe_________________________

(telephonehim).

_____yourtimelyadvice,Iwouldnever

haveknownhowtodealwiththetoughjob.

A.Butfor

B.Exceptfor

C.Notuntil

D.Priorto

ThankYou