1.I________havebeenmorethansixyearsoldwhentheaccidenthappened
shouldn'tB
couldn'tC
mustn'tD
needn't2
Hehavecompletedhishomework;otherwise,hewouldn'tbeenjoyinghimselfontheplayground
shouldB
wouldn'tD
can't3
—DoyouknowwhereDavidis
Icouldn'tfindhimanywhere
Hehavegonefar
—Hiscoat'sstillhere
shouldn'tB
mustn'tC
can'tD
wouldn't4
—HestayedinAfricavisitingwildanimalsforsevendays
—Oh,dear
Healotofexcitement
maygothroughB
mightgothroughC
oughttohavegonethroughD
musthavegonethrough5.Hepaidforaseat,whenhehaveenteredfree
couldB
wouldC
need6.Thiscakeisverysweet
Youalotofsugarinit
shouldputB
couldhaveputC
mightputD
musthaveput7.Theseflowersaredead
Ithemlesswater
shouldhavegivenB
willgiveC
wouldgiveD
mustgive8
-Youreallyshouldn'thaveshoutedtoyourteacher
—Right
Icrazythen