Theopeningceremonyisagreatoccasion.Itisessential_____forthat.
A、forustobeprepared
B、thatweareprepared
C、ofustobeprepared
D、ourbeingprepared
Urbancongestionwouldgreatlyberelievedifthe____chargedonpublictransportweremorereasonable.
A、prices
B、tickets
C、fees
D、fares
TheClarkshaven’tdecidedyetwhichhotel_____.
A、tostay
B、istostay
C、tostayat
D、isforstaying
AlthoughSPanish，heattendedthecourse.
A、hewasknowingheisknowinghavingaknowledgeofknows
B、hewasknowingheisknowinghavingaknowledgeofknows
C、hewasknowingheisknowinghavingaknowledgeofknows
D、hewasknowingheisknowinghavingaknowledgeofknows
Thebackgardenofourhousecontainsalawn，（）verypleasanttositoninsummer.
A、whichis
B、whichitis
C、itis
D、whereitis