Choose the correct option.
1. What ____ you do yesterday?
a.do b. did c. are
2. I _______ the exam, now I have to repeat it,
a.didn't passed b. didn't pass c. didn't passing
3.He ________ take a shower because we ran out of shampoo.
a. did't b.did not c. diden' t
4. My mom _________ angry with me yesterday but now she is ok.
a. is b. were c. was
5.________ you study for the exam that we have today?
a. are b. did c. do