.Only in this way ______ get rid of the bad habit-smoking.

A.you can    B.can you     C.you will     D.can

 Only in this way ________ make progress in your English.

    A. you can          B. can you          C. you are able to      D. will you able to

Only when        early，        enjoy the fresh air.

A.do you get up;you can                                          B.do you get up;can you

C.you get up;can you                                        D. you get up;you can

Only after reaching eighteen       join the army.

A. have you; you can     B. have you; can you      C. you have; you can     D. you have; can you

Only when         finished his own work,        ask him to help you.

 A.has he, can you    B.he has, can you    C.has he, you can    D.he has, you can