英语翻译 急急急急 ！！！！！！！！！！！

Question

他忠告我在决定购买那辆二手车前先弄清楚车况是否良好。（make a decision , make sure)

用括号里的词汉译英。

Answer 1

He suggested that I make sure the second hand car is in good condition before making a decision of buying.

Answer 2

He advises me to check the condition of that second-handed car before making the purchase.

make a decision作决定
make sure 确定某事

Answer 3

He advised me to make sure that whether the second-hand car is in good condition before I made a dicision to buy it.

Answer 4

He advised me to make sure that whether the second-hand car/bike is in good condition before I made a dicision to buy it.

Answer 5

He counseled me to make sure whether the second-hand car is in good condition or not before making a decision to purchase it.