71.  Thank you for your letter.

72.  Examine the soil on your garden carefully.

73.  Ask your neighbours which plants grow best.

74.  Second, sow the seed at the right time of year, ask your neighbours about the weather, third, don't grow the same plants in the same place year after year.

75.  You'd better make a plan to change the crops in your fields.

76.  Fourth, remove weeds so that your plant grow taller.

77.  please give my best wishes to your parents.

78.  How are your plants getting on?

79.  If you hope your plants grow well, you must sow seed at the correct time of year or you May ask your neibours about the weather.

80.  Please give my regards to your parents.