AlthoughSPanish，heattendedthecourse.
A、hewasknowingheisknowinghavingaknowledgeofknows
B、hewasknowingheisknowinghavingaknowledgeofknows
C、hewasknowingheisknowinghavingaknowledgeofknows
D、hewasknowingheisknowinghavingaknowledgeofknows
John'sscoreonthetestisthehighestintheclass;he____lastnight.
A、muststudy
B、shouldhavestudied
C、musthavestudied
D、issuretostudy
Sheaskedthatshe_____allowedtoseehersoninpolicecustody.
A、wouldbe
B、couldbe
C、be
D、was
Marytiptoedoverandtooktheclockawaybecauseshehatedtohearit（）whenshewastryingtogotosleep.
A、sounding
B、ringing
C、ticking
D、humming
The____ofAIDShasledtoanexpansioninresearchseekingacure.
A、innovation
B、selection
C、proliferation
D、conviction