Ⅰ.单词拼写
1．We ________(获益)greatly by this frank talk.
2．The experiment is ________ (设计) to test the new drug.
3．This simple solution ________(治愈)me of biting my nails.
4．According to the text，what was the author ________(决定) to do in that autumn?
5．An acid can ________(反应)with a base to form a salt.
6．It is impolite to ________(评论)on others behind their back.
7．We have no idea how to ________(说服)him to give up the idea.
