问题
听力题
About 71 percent of the earth’s surface is c________ by water.
答案
. covered。
根据常识可知答案,但要注意用过去分词,因为此处为被动语态。
About 71 percent of the earth’s surface is c________ by water.
. covered。
根据常识可知答案,但要注意用过去分词,因为此处为被动语态。