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Only in this way _______ to make improvement in the operating system.

Only in this way _______ to make improvement in the operating system.

A．you can hope                          B．can you hope

C．you did hope                           D．did you hope

Only in this way        to make improvement in the operating system.

A．you can hope        B．you did hope        C．can you hope        D．did you hope

Only in this way ________ to make improvement in the operating system.

[　　]

Only in this way ________ to make improvement in the operating system.

[　　]