18.These days, women have as good an education as men ,........I think is a good thing.
1.when
2.which
3.who
توضيح : يعود ضمير الوصل في هذه الجملة علي المعني العام للجملة التي تسبقه "حصول النساء علي نفس تعليم الرجال"
....
17.The town ..... I was born is in the north of Egypt.
1.in which
2.which.