【C16】A．lobbyB．runC．substituteD．head

More and more trucks are seen______ between these two towns these days.A．runB．to runC．be r

【C3】A．ownB．runC．possessD．love

【C16】A．replacementB．exchangeC．shiftD．substitute

A．selectionB．optionC．alternativeD．substitute

【C12】A．moveB．runC．walkD．flow

If a phoneme is substituted for another in a word and the substitution results in a change