Experts think that ____recently discovered painting may be _____ Picasso.（）
| A． | the.不填 | B． | a;the | C． | a;不填 | D． | the;a |
．Some people would rather ride bikes as bike riding has______of the trouble of taking buses.
| A．nothing | B．some | C．neither | D．none |
．---I give up. It’s too hard.
---Really? I__________you could make it through.
| A．think | B．thought | C．have thought | D．am thinking |
．Walking together, my father and I used to have a lot of conversations I __________learned lessons from his experience.
| A．that | B．where | C．when | D．through which |
________a slight chance that Guo Jingjing will take part in the 2010 London Olympic Games.
| A．It has | B．They are | C．There remains | D．It remains |
．The cousins are alike in age, but__________they are as different as day and night.
| A．anyhow | B．besides | C．otherwise | D．moreover |