Mary is a warm-hearted lady. She is ready to help others, but never expects anything .

untry’s chief exports are coal, cars and cotton goods, cars_____ the most important of these.

下列句子中，没有语病的一项是（ ）

When the space ship was ____, I could really feel the high gravity.

The farmers were more anxious for rain than the people in the city because they had more _____