Jane told me she would not attend the conference ________.

A. if he invited     B. when inviting   C. unless invited    D. while inviting

She looks sad. Could you please tell me ____ that prevents her from being as happy as before.

    A. what it is       B. it is what    C. how it is         D. it is how

--I hope Bill won’t come.

--_____, why did you invite him?

A. Now what        B. If so        C. In case    D. Even though

If this dictionary is not yours,___________ can it be?

A. what else         B. who else    C. which else’s          D. who else’s

Farmland _______ quickly, so they are considering _____ a programme to solve the problem.

 A. is getting lost; starting               B. is lost; to start

 C. is losing; starting                      D. loses; to start

He raised his arm to _______ ________ _______ (护住脸) from the blow.