A．calling onB．calling forC．calling offD．calling in

【C4】______A．calling offB．calling forC．calling uponD．calling up

【C10】A．call onB．wait forC．send forD．run into

He is______an important customer now and he will be back tonight.A．calling onB．calling upC

55._________A..calling onB..calling forC. calling

53._________A.call in B.call offC.call up D.call

Women all over the world are ______ equal pay for equal jobs.A.calling onB.calling aboutC.