Many visitors were ________ to the sufferings of early Chinese miners in San Francisco.

单选题

Many visitors were ________ to the sufferings of early Chinese miners in San Francisco.

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单选题

Many automobile accidents were ____ careless driving.

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问答题

were

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单选题

At least how many tests were carried out by the scientists referred to in this passage

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材料题

n crossing the road were beginning to make shopping an unpleasant and dangerous experience.Many believed the time was right for experimenting with car-free streets and shopping areas seemed the best place to start.3 .At first,there was resistance from shopkeepers.They believed that such a move would be bad for business.They argued that people would avoid streets if they were unable to get to them in their cars.When the first streets in Europe were closed to traffic,there were even noisy demonstr

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