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
- 1I live next door to a couple______ children often make a lot of noise.
- 2Ill be out for some time . _______anything important happens, call me up immediately.
- 3If you don’t understand something, you may research, study, and talk to other people _______ you figure it out.
- 4As is reported,it is 100 years _______ Qinghua University was founded.
- 5(2012全国II)l had hardly got to the office _____ my wife phoned me to go back home at once.
- 6Before the sales start,I make a list of ________ my kids will need for the coming season.