【C9】A．signsB．gesturesC．signalsD．marks

How was the Project received when Mark first sent his invitation？A．Mark received responses

【C8】A．marksB．criesC．signalsD．smiles

【C6】A．changeB．mistakeC．differenceD．mark

【C8】A．marking upB．mark upC．to mark upD．to mark

【C7】A．similarityB．distinctionC．differenceD．mark

【C10】A．notedB．impressedC．labelledD．marked