Steps must be taken___ this kind of disaster will never happ

Steps must be taken___ this kind of disaster will never happ This kind of robot will also be fun to watch. This kind of food___cool,dry.A.shoud be placed B.must be kep l will never make mistakes---this kind.A.of B.in C.on D.for This kind of dance can never last. You must be confident and proud in this kind of T shirt.[翻译成 Something must be done ___ ___ this kind of accident ___ ___ This kind of food must be _______(delicious)than that one To be honest,I never thought this kind of situation would ar this is kind of suit will be sold for 600yuan,which is far m This kind of robot will also be fun to watch.为什么Robot是单数而不是复 This kind of robot will be fun to watch.的意思的什么?