OOPS! PICK THE MISTAKE. 

There are mistakes in all of these sentences. Can you rewrite each sentence correctly?

1. Yesterday I stay to home to watch some movie.
2. Last week he is getting a new job.
3. Your dress, I like it.
4. I see kangaroo yesterday.
5. Erin did not say where did she buy her book.

Corrected sentences. 
a. Yesterday I stayed home to watch some movies.
There were several errors. Yesterday is past, so the verb needs to be past (stayed). We ‘stay home’ not ‘stay to home’ and finally ‘some’ suggests that there is more than one, so the noun needs to be plural. 
b. Last week he got a new job.
Last week is past and finished so the verb needs to be in the simple past. (got)
c. I like your dress.
It is not strictly incorrect to use the original sentence (Your dress, I like it.), but it is unusual. The more standard form is ‘I like your dress.’ 
d. I saw a kangaroo yesterday. / I saw kangaroos yesterday.
Again this is a tense error. ‘Yesterday’ is past and the action has been completed, so the verb needs to be in the simple past (saw). There is also a problem with the noun. It needs to be clearly marked as either singular or plural  (a kangaroo OR kangaroos).
e. Erin did not say where she bought the book. / Erin did not say where she had bought the book.
‘Where’ is often used as question word and thus is frequently followed by ‘did;’ however, in this context, it is not a question and ‘did’ is not used.