Complete the series: A1BC, AB2C, ?, A4BC
Complete the series: AGMSY, CIOUA, EKQWC, ?, IOUAG, KQWCI
Complete the series: ANN, CPP, ERR, ?
Complete the series: AZBY : CXDW : : EVFU : :
Complete the series: b e d f ? h j ? l
Complete the series: BCB, DED, FGF, HIH, ?
complete the series: BCD, RQP, LMN, TS?
Complete the series: BCFG, JKNO, RSVW, ?
Complete the series: BDFH, IKMO, PRTV, ?
Complete the series: BEAG, DGCI, FIEK, ?