From space，the earth looks blue. This is _____ about seventy-one percent of its surface is covered by water.
（A）why
（B） how
（C） because
（D） whether
查看解析
参考答案
继续答题：下一题
更多高中英语试题
- 1Many young people, most ______were well-educated, headed for remote regions to chase their dreams.
- 2Every year， ______ makes the most beautiful kite will win a prize in the Kite Festival.
- 3Jane moved aimlessly down the tree-lined street， not knowing ______she was heading.
- 4____ he once felt like giving up, he now has the determination to push further and keep on going.
- 5He is a shy man, _____he is not afraid of anything or anyone.
- 6As is reported，it is 100 years _______ Qinghua University was founded.
