--You know Mr. Green has been ill for days? --Yes, I wonder if he is ______ better now. 

For me traveling to Antarctica proved to be the beginning of a new life, ________ I had thought I would never see.

Is ________ man’s ability to reason that sets him apart from other animals?      

— How many classmates did you see there?— ________.

I would appreciate ______ very much if you help me with my English.