A．toB．likeC．byD．as

【C5】A．seemingB．looking likeC．asD．as if

A．forB．ofC．byD．as

【C6】A．unlikeB．likeC．alikeD．as

【C7】A．toB．withC．byD．at

【C16】A．exposed toB．discovered byC．experimented byD．absorbed by

【C7】A．such thatB．just likeC．as ifD．much as