Present Perfect and Past simple

This boy completed his exams this week.

• He has three exams this week

• He have had three exams this week

• He had three exams this week

• congratulations

yesterday I ___ a movie

she has been sick since monday

• she had been sick when since last week

• she has been sick since last week

• 

we use "have/has" when it is present perfect?

• Yes, because we use have or has for the present

• No, because we use had for the present

What is the main difference between present perfect and past simple?

answer in the affirmative

did you brush your teeth this morning?

• I don't have time

• I will do it later

• 
• Yes, I did brushed them

answer in the negative

have you ever flown by plane?

• yes, i did

• I have never flown in a plane

•