单项选择题

Most engineers were ______ about the effectiveness of the new model of word-processors.

A．pessimistic
B．doubtful
C．worry
D．ignorant
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单项选择题
They were late for class for there was a ______ in the traffic.
A．hold-up
B．hold-out
C．hold-of
D．hold-on
单项选择题
They had to go on looking for two months before they eventually found a house that ______ them.
A．suited
B．noticed
C．admired
D．appealed
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