我和汤姆都盼望早日见到您。

单项选择题Which is the best title for this passage

单项选择题A. went B. helped C. spoke D. swam

单项选择题A. nervous B. calm C. frightened D. excited

单项选择题A. fresh B. poisonous C. warm D. ice-cold

判断题The less of a carbon footprint we leave, the better our environment will become.

单项选择题A. So B. Therefore C. Then D. Actually

单项选择题What does the author say about straight, horizontal bars painted across roads

判断题If we spend less time taking a shower, we can cut the number of CO2.

单项选择题The American Automobile Association Foundation for Traffic Safety plans to ______.

判断题If we use a dryer five times per week, we produce 154kg of CO2 per year.