Itisusefultoscience_______theearthasanobjectinspace.
A、toconsider_______themovieIwouldhavefinishedmypaperlastSunday.
TheTVstation,in________tomassivepopulardemand,decidedtocontinuethesoapopera(肥皂剧).
ItwasthreeBritishsportsmenwho________banneddrugs.
Idon'tknowhowwecanmake________onthetimetableforanymorecourses.
Attendanceatfootballmatcheshave_____sincethecomingoftelevision.
