【B5】A．thatB．whatC．howD．when

【C19】A．thatB．whatC．whenD．where

【C16】A．thatB．whatC．whyD．how

A．whichB．whatC．howD．because

【C11】A．thatB．whichC．howD．as

【C2】A．thatB．whichC．howD．what

【C2】A．thatB．whatC．callD．those