Onlyinthisway_____tomakeimprovementintheoperatingsystem.
A. youcanhope
B. youdidhope
C. canyouhope
D. didyouhope
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_____canyouexpecttogetapayrise.
A. Withhardwork
B. Althoughworkhard
C. Onlywithhardwork
D. Nowthatheworkshard
OnlywhenLilywalkedintotheoffice_____thatshehadleftthecontractathome.
A. sherealized
B. hassherealized
C. shehasrealized
D. didsherealize
Theoldcouplehavebeenmarriedforfortyyearsandneveronce_____witheachother.
A. theyhadquarreled
B. theyhavequarreler
C. havetheyquarreled
D. hadtheyquarreled
Notonce____hisclassmateDavidsincetheygraduatedfromhighschool.
A. hehasmet
B. hashemet
C. hehadmet
D. hadhemet