Mr Smith, looking ______, started to work out a        problem.
#18305
A
puzzled, puzzling
B
puzzling, puzzled
C
puzzled, puzzled
D
puzzling, puzzling
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The little town has now grown into a modern big city, and is ______ what it used to be.
#20395
A
twice the size than
B
twice times the size as
C
twice the size as
D
twice the size of
 ______ to the climate here, the old couple would rather live here for the rest of their life _____move to another city. 
#18665
A
Having accustomed; than
B
Accustomed; than
C
Accustom; rather than
D
Accustoming; rather than
The flight attendant welcomed us ___ the plane. 
#19662
A
abroad
B
aboard
C
board
D
broad