Find and correct 2 grammar mistakes in the following sentence.
The students have rapidly improve their literacy over the last year.
The sentence with corrected grammar would be: The students have rapidly improved their literacy over the last year.
Complete the following task based on the instruction and optional input provided.### Instruction:
Find and correct 2 grammar mistakes in the following sentence.

### Input:
The students have rapidly improve their literacy over the last year.

### Output:
The sentence with corrected grammar would be: The students have rapidly improved their literacy over the last year.