4.3 课时作业
Ⅰ.用所给单词的正确形式填空
1．Gun sales are strictly ________ (regulate) by the government.
2．He made a ________ (volunteer) statement to the police.
3．He is ________ (experience) in teaching English.
4．Several ________ (passer－by) saw the accident.
5．The government ________ (relax) import regulations greatly.
