Điền từ thích hợp vào chỗ trống: For the last twenty years, he has been laying ___ 15% of his salary for his old age

For the last twenty years, he has been laying_______ 15% of his salary for his old age.

He was let_______ with a warning instead of being given a fine.

The student let_______ a cry of horror when she saw her poor exam results.