根据句意，选择单词或短语并以其适当形式填空。

A: make a difference   B: due to   C: cheer up       D: let down   E: benefit from

【小题1】You don't need to do much to________ to others' lives.
【小题2】We played well, but I felt the team were ________ by one member, our point guard.
【小题3】She was sad about failing the test. To ________ her ________, we invited her to her favorite restaurant for lunch.
【小题4】Africa people ________ the life-changing gift of clean, safe water.
【小题5】After 1975, the number of large sharks fell around the world, which was not only ________ fear of sharks, but also finning.