Frank đang nấu ăn. Hãy đưa ra vài lời khuyên hữu ích. Sử dụng "you should" hoặc "you shouldn't" và những ghi chú trong hộp

Frank đang nấu ăn. Hãy đưa ra vài lời khuyên hữu ích. Sử dụng "you should" hoặc "you shouldn't" và những ghi chú trong hộp.
• Don't leave the beef in the oven for more than one hour.
• Cut the onions as thin as possible.
• Use fresh herbs and fresh vegetables.
• Don't put in too much salt and chilies.
• Wait until the water boils before you put the vegetables into it.
• Heat the oven before you put the beef in.
• Cut the beef into a lot of equal slices.
You shouldn't leave the beef in the oven for more than one hour.
• ___________ the onions as thin as possible.
• _____________ fresh herbs and fresh vegetables.
• ___________ in too much salt and chilies.
• ___________ until the water boils before you put the vegetables into it.
• ______________ the oven before you put the beef in.
• ____________ the beef into a lot of equal slices.