三. 句型结构
1. The story of the novel happened in pre-war London in the 1930s.
The novel is ______ ______ pre-war London in the1930s.
2. An official from NASA claimed that they believed the idea of a space lift would some day be possible immediately he heard the proposal.
_______ ________ the proposal, an official from NASA claimed that they believed the idea of a space lift would some day be possible.
