Foodmustbemoistinordertohaveataste.

• A.appetizing(delicious)
• B.nutritious
• C.damp
• D.chewed

Alllivingorganisms,regardlessoftheiruniqueidentity,havecertainbiological,chemical,andphysicalcharacteristicsincommon.

• A.asaresultof
• B.considering
• C.cognizantof(consciousof,awareof)
• D.whatever

Wehaveenteredintoanage_______dreamshavethebestchanceofcomingtrue.

• A.which
• B.what
• C.when
• D.that

Theflowerbudofawaterlily百合opensatsunsetsince.itsopeningistriggered(commence).bythedecreasedlight.

• A.alleviated减轻
• B.endured
• C.setoff
• D.coveredup

ThefirstimportantexpositionintheUnitedStateswasheldinPhiladelphiain1876.

• A.exhibition
• B.concert
• C.excursion
• D.contest

Thefearofsmallpox,whichterrorizedtheeighteenthcentury,hasnoanalogy(likeness)today.

• A.occurrence
• B.remnants残留物
• C.witnesses
• D.parallel