英语问题，急！急！急！

if (YOU study hard), (You can achieve good results in your final exams).
或者 as far as (YOU study hard), (You can achieve good results in your final exams).

This is the television set which I bought yesterday.

which book do you want to borrow?

1 If you had studied hard,you would have achieved good results in your final exams.
2 This is the television set which I bought yesterday.
3 Which book do you want to borrow?

If YOU study hard You can achieve good results in your final exams.(改为条件状语从句）
⒉This is the television set( which) I bought yesterday.(用定语从句合并）
⒊Which book do you want to borrow ?