Answer:
The journal entries are as follows:
(i) Wage Expense A/c Dr.
      To Cash A/c
(To record the wages paid to the instructors)
(ii) Electricity expense A/c Dr. $1,750
         To Accounts payable    $1,750
(To record the electricity expense)
(iii) Accounts payable A/c Dr. $1,750
       To Cash                 $1,750
(To record the payment of electricity expense)
(iv) Electricity expense A/c Dr. $800
         To Accounts payable    $800
(To record the electricity expense)