单项选择题

Sorry, I'm late. I was delayed by a traffic ______.
A) block C) jam
B) trouble D) injury

A．Sorry, I'm late. I was delayed by a traffic ______.
B．block
C．trouble
D．jam
E．injury
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单项选择题
To ______ the temperature of the new machine, the researchers had to work for hours.A) turn C) findB) measure D) investigate
A．To ______ the temperature of the new machine, the researchers had to work for hours.
B．turn
C．measure
D．find
E．investigate
单项选择题
When we got to the station, we were so sorry to find that the train was ______.A) taking up C) pulling awayB) taking off D) pulling out
A．When we got to the station, we were so sorry to find that the train was ______.
B．taking up
C．taking off
D．pulling away
E．pulling out
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