Ⅰ.单词拼写
1．It's 21 years since she first moved to Britain, but she hasn't forgotten her ________ (根)．
2．Any significant social change brings about problems and it is ________ (必要的) to work out proper solutions.
3．Most people think ________ (有机的) farming looks much more expensive for the farmers.
4．Everybody is talking about the matter, which is a subject of ________ (广泛的) comment.
5．Nowadays, a great deal can be done to ________ (减轻) back pain.
6．This ________ (杀虫剂) is harmless to people.
7．They learn well but seem to need time to ________ (领会) information.
8．Her mother began operation of a small ________ (杂货店)．
9．The rock is rich in ________ (矿物质) salts.
10．He has already expressed his dissatisfaction with this ________ (方面) of the policy.
