In 1620, about half the USA forests.A. was covered B. covered withC. were filled with D. was covered

查询谷 - www.chaxungu.com

编辑：chaxungu时间：2026-04-27 03:20:26分类：高中英语题库

【题目】In 1620, about half the USA forests.

A. was covered B. covered with

C. were filled with D. was covered with

在线课程

【答案】D

【解析】考查被动语态和句意理解。句意：1920年，美国一半的土地都被树林覆盖。cover sth. with sth意为“用……覆盖……”。about half the USA和cover之间是被动关系，故该句应用被动语态，故D选项正确。