单项选择题
Trade relationships between the two countries will improve if their（）leaders could agree on the proposed quotas.
A. respectable B. respective C. respectful D. respecting
单项选择题 Those old buildings were ______ to make room for a new shopping center.
单项选择题 AIDS is causing great public concern because the（）fatal disease hits primarily young people.
单项选择题 There is no electricity again. Has the（）blown then
