问题
选择题
The books you donated are used to _____ children in need.
A．help
B．helped
C．helping
D．helps
答案
答案：A
A 考查used的用法。sth. be used to do sth.="be" used for doing sth.“某物被用来做......”；sb. be used to doing sth.“某人习惯于......”；used to do sth.“过去常常做......”。“你捐赠的书被用来帮助有需要的孩子。”故选A。