Question

Its faster if you use/will use an electronic dictionary
If you asl/will as the teacher,shell explain the meaning of the word
You need to study for years if you want/wanted to become a good translator
If machines couldd translate well,English teachers will lose/would lose theur jobs

Answer 1

Use
Ask
Want
Would lose

Answer 2

It's( will be) faster if you use an electronic dictionary.
If you ask the teacher,she'll explain the meaning of the word.
You need to study for years if you want to become a good translator.
If machines could translate well,English teachers would lose their jobs.