- if the volcano ................., i would leave quickly
( erupts - was erupted - had erupted - erupted
without electricity , our life ............ dark and dull
will be - would have been - should have been - would be
............. he in his 70 s , he might consider taking up squash
if - unless - werenot - had not
if you had studied more , you ............ have passed the exam
might - can not - must - should
f.m
without the computer , there will not be technological miracles
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