Theoldwomanis_a_60and70yearsold.a.betweenb.aboutc.duringd.over2.Theyareas_c_asusual.a.happilyb.busilyc.friendlyd.carefully3.EvenonholidaysMr.Wangpreferred_c_to__nothing.a.read;dob.toread;do

　　The oldwomanis_a_60and70yearsold.

　　a.between b.about c.during d.over

　　2.Theyareas_c_asusual.

　　a.happily b.busily c.friendly d.carefully

　　3.EvenonholidaysMr.Wangpreferred_c_to__nothing.

　　a.read;do b.toread;do c.reading;doing d.toreai;doing

　　我把答案都写在下划线上了,可是不知道为什么选这个选项,望有老师能简单说一下每题答案的原因~