单项选择题
A．Because traveling by air costs too much money. B．Because traveling by air is uncomfortable. C．She thinks traveling by air is very dangerous. D．She is too old to travel by air.
A．She is too selfish. B．She doesn’t seem to be active. C．She lacks the basic knowledge for the job. D．She is too sure of herself.
A. 在你控诉他之前要有足够的事实。 B. 在你控诉他之前要确信你有足够的事实。 C. 在这之前你有足够的事实控诉他。 D. 你要确信你有足够的事实才能控诉他。