单项选择题
With her last child having left home, she felt a ______ need to fill her time.
单项选择题 The announcement of the death of their leader caused thereafter a feeling of great despair to ______ their lives.
单项选择题 His alibi was fishy, yet ______ to close scrutiny.
单项选择题 He never exerts himself to aid those trying to ______ a difficult situation.
