1.Hunger is _____ number one global health risk,so the WFP h

1.Hunger is _____ number one global health risk,so the WFP has organized a lot of programmes,which helps people most at ________risk.
A.the； / B.a； / C.the；the D.a；a
2.He had a bad week.He lost his job,________ ,his car was stolen.
A.on top of that B.on top of it C.and on top of which D.on top of which
3.The advertisement company_______ a mass audience.
A.was intended to target with B.intended the advertisement to target
C.intended the advertisement to be targeted D.was intended to be targeting
4.People ran out __________ as fire tore through the building.
A.in vain B.in rags C.in one voice D.in terror
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