【单选题】According to the survey, how many of the college students in the U.S. say they enjoy their life?
【单选题】I don't know_____. [ ]
【单选题】How is the weather in Beijing in the photo?
【单选题】— __________ do you go to concerts? — It's hard to say, maybe once a month. [ ]
【单选题】I don’t understand how he can say that everything is fine ________ it’s so obvious that it’s not.
【单选题】I don’t understand how he can say that everything is fine _____ it’s so obvious that it’s not.
【单选题】Do you know ________ in English?