A.question B.huge C.pulse D.sudden
A. B. C. D.
A.although B.valley C.walk D.talk
A.reason B.switch C.spirit D.seldom
A.move B.noodle C.who D.coffee
A.machine B.match C.headache D.chemistry
A.union B.program C.hopeful D.proper
A.what B.which C.whole D.where
