-Whatwasthepartylike?-Wonderful.It’syears____Ienjoyedmyselfsomuch.
A. after
B. before
C. when
D. since
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Intimeofseriousaccidents,____weknowsomebasicthingsaboutfirstaid,wecansavelives.
Iwouldappreciateit____youcallbackthisafternoonforthedoctor’sappointment.
Itisknowntoallthat____youexerciseregularly,youwon’tkeepgoodhealth.
Theywillhelpyou____youmeetwithdifficulty.