【C4】A．aimB．saveC．aidD．rescue

Who __ his life is still unknownA.savedB.saveC.had savedD.has saved

Can you do the task alone， or do you want anyone to assist you.‘？A.aimB.helpC.showD.guide

【C2】A．helpB．supportC．aidD．assistance

A．aimB．problemC．causeD．reason

【C7】A．aimB．proposeC．selectD．tend

【C8】A．searchB．saveC．offerD．seek