短文填空。（每空2分，共16分）
根据下列短文内容，在短文后的空格处填上一个恰当的词，使短文完整、通顺。每空一词。
If you need to           your parents but your phone is not with you, can you remember their numbers? To remember 11 numbers is not difficult. However, we are losing this ability(能力) of smartphones(智能手机). And smartphones are also bad for people’s face-to-face communications. Even when friends have a meal together, it is common for them to play with their phones.
For students, it is not good, either. Some students          more than four hours a day on their phones and they certainly do          in study than those who play with their phones only for 30 minutes a day.
It is true that smartphones make our         easier. But many people also think they spend too much time on it, and this is bad for their study or work. People are trying to make it right. A coffee bar in New York hangs a blackboard on its door and it says, “We don’t have Wi-Fi here. You need to talk       your friends with your mouth but not hands. ” And in a restaurant in Los Angeles, people can have a 5% discount(折扣)      they don’t play with their phones during the meal. Its owner, Mark, says he hopes it gives people a     to enjoy their meal and the time with their friends and family.