Answer:
- a)put – melts
- a)were – would help
- a)has – will visit
- c)will learn - becomes
Step-by-step explanation:
1. If you put an ice cube in water, it melts.
2. If he were here, he would help you.
3. If She has time, She will visit you next weekend.
4. If he will learn the basics of computers, he becomes a better student."