单项选择题

Tim is dubious about diet pills which advertise quick weight loss.

A．anxious
B．pessimistic
C．doubtful
D．ignorant
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单项选择题
California seems to be the home of the homeless since many are often observed tramping along railroad tracks and through the downtown areas of the cities.
A．roaming
B．trimming
C．stealing
D．stamping
单项选择题
Many people in Wales have an affinity with music.
A．reputation for
B．solubility in
C．tincture in
D．attraction to
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