First,put the cheese on the first slice of bread.Then,cut up a tomato.Add these to the bread.Next,put some lettuce on bread.After that,put the ham on the second slice of bread.Finally,put the tomato sauce on the ham,and put the third slice of bread o

First,put the cheese on the first slice of bread.Then,cut up a tomato.Add these to the bread.Next,put some lettuce on bread.After that,put the ham on the second slice of bread.Finally,put the tomato sauce on the ham,and put the third slice of bread o
First,put the cheese on the first slice of bread.Then,cut up a tomato.Add these to the bread.Next,put some lettuce on bread.After that,put the ham on the second slice of bread.Finally,put the tomato sauce on the ham,and put the third slice of bread on the top.

First,put the cheese on the first slice of bread.Then,cut up a tomato.Add these to the bread.Next,put some lettuce on bread.After that,put the ham on the second slice of bread.Finally,put the tomato sauce on the ham,and put the third slice of bread o
Firstly,put the cheese onto the first slice of bread.Then,cut a tomato into pieces and add them onto the bread.Next,put some lettuce onto the bread.After that,cover the second slice of bread,put a ham onto the bread and add ketchup(番茄酱) onto the ham.Finally,put the third slice of bread on the top.A big hamburger
is done.

建议 Then, cut up a tomato. Add these to the bread. 改为 Then, cut a piece of tomato. Put this on the bread.
Next, put some lettuce on bread. 改为 Next, put some lettuce on the bread.

无语，写得太差了，主谓语都有问题没法改啊