Theproblem________whenthestudentsrefusedtodotheirhomework.

• A.arose
• B.aroused
• C.rose
• D.raised

SinceWilliamhadbeenseriouslyillforseveralmonths,hisparentswereworriedabout________toreturntoschoolfull-time.

• A.hewanted
• B.hewanting
• C.himtowant
• D.hiswanting

________somanypeopleintheUnitedStatesbeenoutofworkastoday.

• A.Morethaneverbefore
• B.Inthepast,therehavenever
• C.Neverbeforehave
• D.Formerly,thereneverwere

Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.

• A.took
• B.brought
• C.showed
• D.came

Theassociationis________toraisingfundstohelptheblind.

• A.conducted
• B.committed
• C.concentrated
• D.concerned

TheTVstation,in________tomassivepopulardemand,decidedtocontinuethesoapopera(肥皂剧).

• A.regard
• B.relation
• C.respect
• D.response