— Yes, now English is more and more important. English ____________ the first language in England and some other countries.
A:am used to; is used by
B:am used to; is used as
C:used to; is used by
D:used to; is used as
张老师要购买一台笔记本电脑,他考察了A、B两家电脑商店.想购的电脑标价都是9980元,但两个商场的优惠方法不相同:A商场:全场九折.B商场:购物每满1000元送100元.哪家商场的笔记本电脑便宜些?