1.(2019·江苏卷) the convenience of digital payment,many senior citizens started to use smart phones.
A.To enjoy B.Enjoying
C.To have enjoyed D.Enjoy
答案:A
解析:句意:为了享受数字支付的便捷,许多老年人开始使用智能手机。根据句意可知,此处使用动词不定式做目的状语。
2.(2018·天津部分区一模卷) your purchases in time, make sure the express company knows your address exactly.
A.To receive B.Received
C.Receiving D.Having received
答案:A
解析:句意:为了能及时收到买的东西,你要确认快递公司清楚地知道你的地址。此处是动词不定式做目的状语,故选A项。
