A. Please make two sentences using the following patterns:

• I’m good at ... (I'm good at cooking but I can cook only Korean food.)

  => I'm good at cooking but I can only ​cook Korean food.​

  => Corrected : The sentences are corrected grammatically.   

• I’m not good at ... (I'm not good at growing plants.)   ✔​

B. Make these sentences into English.

-제가 해야 할 일에 최선을 다하겠습니다. (I will do my best on the thing I have to do.)

  => I'll do my best for what I have to do.​

  => Corrected : The sentences are corrected grammatically.   

-감기 걸리지 않도록 조심해. (Be careful don't catch a cold)

  => Take care not to catch a cold.​​

  => Corrected : The sentences are corrected grammatically.   

-그는 계단에서 굴러 떨어져 의식을 잃었다. (He tumbled on stairs and lost his consciousness.)​ 

  => He fell unconscious after falling down the stairs.​​

=> Your answer is correct but here's another way of saying it. ​