STRANGERS parties go wild these days. The main idea of them is to never let the people kno

STRANGERS parties go wild these days. The main idea of them is to never let the people know who their matches are until the last minute. These are some popular practices that are storming the world’s youth on this V-day.
Speed dating
It’s exactly what the name implies. Complete with a timer, a whistle and 50 willing singles, speed dating is not the traditional dinner and a movie type of first date. Singles pay US $35 for three minutes with more than two dozen future dates. They ask questions and try to get to know each other. At the sound of a whistle, they do the same thing all over again―25 times in all.
Lock and key party
Women are given a lock and men are given a key, upon arriving at the party. Each key and lock has several matches. One can hunt for his/her later-to-be sweetheart in various groups, and try out the key or lock. Each time a lock and key match the pair are entered into a ballot (票数） for top prizes!
Dinner in the dark
Waiters wearing night vision glasses guide the guests through the pitch-black dining room. They are seated at the table and familiarized with the wine glass and plate. Food is handled with the fingers. People will not see the food they are eating or the guests at their table until the dessert course. At that moment, dining partners will appear.
Message party
Have A Cocktail, Leave A Message! When you arrive, you get a tag with a number and a pad of post-it notes. If you see someone you like, write a message on the message board. But wait… You’ve got a message… Go and collect it! You can make new friends and win lots of gifts. The more messages you leave on the bulletin board, the more chances you have of winning prizes.
【小题1】What do you think the similarities of these parties are?A．All the parties have very strict rules for their members.B．If you want to go to any of the parties, you have to buy a ticket.C．All the parties are aimed at strangers who want to be lovers.D．All the parties are suitable not only for the young but for the old.【小题2】 In which party does a participant have to be careful with the time?A．Speed dating.B．Lock and key party.C．Dinner in the dark.D．Message party.【小题3】If you go to the Dinner in the dark, .A．you have to wear night vision glassesB．you have to eat with your handsC．guests eat all the courses in the darkness D．your dining partners will help you choose the food【小题4】 How many of the parties offer gifts or prizes?A．1.B．2.C．3.D．4.C

(答案→)C 解析： 略

就是这个解释