47．I couldn’t sleep well ____ all the windows open.
A．when B．with
C．for D．because of
48．I recognized the handwriting _____.
A．as our monitor B．like our monitor
C．as that of our monitor’s D．like that of my monitor
49．Sports and games can be ____ great help to us.Let’s all do more sports.
A．of B．with C．for D．in
50．____ the two stories I’ve just read,I like the one written by the young lady better.
A．In B．By C．Of D．From
53．About twenty percent of the population of our country live ____ wages.
A．by B．on C．with D．in
59．She looks quite young ____ her age.
A．for B．of C．in D．about
73．Can you imagine how excited my grandma was the first time she talked to me ____ telephone?
A．on B．by C．over D．through
He introduced himself ____ Big John,but his real name is John Williams.
A．to B．like C．as D．for
79．The old men was ____ help,he is dying.
A．without B．beside C．beyond D．against