In China, the number of cities is in-creasing __________ development is recognized across the world.
| A．where | B．which | C．whose | D．that |
【2015·福建】_________the students came from different countries, they got along quite well in the summer camp.
| A．While | B．Unless | C．Since | D．Until |
【2015·陕西】I believe you will have a wonderful time here ________you get to know everyone else.
| A．though | B．as if | C．once | D．so that |
【2015·四川】There is only one more day to go ______ your favorite music group play live.
| A．since | B．until | C．when | D．before |
【2015·天津】We need to get to the root of the problem______ we can solve it.
| A．while | B．after | C．before | D．as |
【2015·浙江】______ a single world can change the meaning of a sentence, a single sentence can change the meaning of a paragraph.
| A．Just as | B．Even though | C．Until | D．Unless |