The designer spent several hours ________ his potential client on designing a sofa bed.
A. toengagein
B. toengagewith
C. engagingin
D. engagingwith
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---Where'sNancy,doyouknow?---Oh,________tohospital.
A. she's taken
B. she'll be taken
C. she's been taken
D. she'll take
---Doyouknowwhyyourfriendhasn'tturnedupyet?-Sorry,Idon'tknow________.
A. whatisthematter
B. howmattersstood
C. whatthematteris
D. howisthematter
---MyGod!Ihavetowalkhomenow,becauseIjustmissedthebus.---That'stoobad.You________ityou if hadsetoutabitearlier.
A. shouldhavecaught
B. hadcaught
C. wouldhavecaught
D. couldcatch
Theteacher'sadvicewouldbe________valuabletoJohnwhoisnowatalossastowhattodofirst.
A. excessively
B. extensively
C. exceedingly
D. excellently