문제에 제가 답을 달아봤는데...맞나요?? 혹시 다른 답을 적을 수도 있나요??

6. if they had realized the danger, they would have done it differently.
→ had they realized the danger, they would have done it differently.2. 서두르면 버스를 탈 수 있을 거야.
if you hurry up, you would catch the bus. →will / can

① if i were smart, i could solve it out. [if를 생략한 문장으로]
⇒ were i smart, i could solve it.