A．thisB．thatC．itD．these

A．thisB．thatC．nothingD．anything

【C17】A．thisB．thatC．itD．so

【C6】A．thisB．itselfC．itD．that

【C6】A．thisB．thatC．whichD．whose

【C7】A．thisB．thatC．itD．such

【C13】A．thisB．thatC．itD．such