They put forward a lot of plans at the meeting, none of _________ carried out in their work.

A. which B. them   C. what   D. that

He put forward a good idea ________ gave us hope.

A. that           B. what        C. that what     D. /

They put forward a lot of plans at the meeting, none of ______ carried out in their work.

A. which                                         B. them                                 C. what                                  D. that

They put forward a lot of plans at the meeting, but none of _______ were carried out in their work.

They put forward a lot of plans at the meeting, none of _______ were carried out in their work.