...... low-cost airlines may soon become normal practice in the business\rworld.\r29 A what B when C why\r30 A branch B sector C department\r31 A charged B cost c paid\r32 A must B shall c ought\r33 A methods B ways c approaches\r34 A through B along c over\r35 A however B indeed c therefore.\r36 A made B had C done\r37 A if B unless C as\r38 A at B for c of\r39 A much B many c more\r40 A Choose B Choosing c Chosen
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