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11.It’s difficult to tell the twins ______ because they look exactly the same.
A.apart B.alike
C.aside D.across
12.The quality of life had improved ______ and there was a marked change in life style.
A.considerately B.considerably
C.desperately D.essentially
13.That Christmas Eve,he was too excited to sleep,and just pretended to,hoping to catch a ______ of Father Christmas.
A.sight B.glimmer
C.glimpse D.glare
14.She turned down the invitation to the party as she had a(n)______ at the office with a new client.
A.appointment B.arrangement
C.assignment D.promise
15.Something in her had changed and this kept me from recognizing her ______ first glance.
A.through B.at
C.with D.in