Очень срочно,прошу помогите
все задания, даю 20 баллов,оченб надо...

Have to
Should; have to
Has to; should
Doesn't have to;should/have to (не уверен)
Has to; Doesn't have to ;should.
2)
I've got a bad mark.
I've buy a defective item.
I've Received expensive thing
I've been robbed by thieves за 10 баллов этого хватит.