大家帮我看看我做得对么?1.Grandma was ill.That was why she _A__upstairs

大家帮我看看我做得对么?
1.Grandma was ill.That was why she _A__upstairs last night.
A.was helped B.was helping C.helped
D.had helped
2.The girl _D__ sing in the next room last Sunday.
A.heard to B.is herad to C.was heard
D.was heared to
3.He often makes his sister_B__,but this time he was made _B__by his sister.
A.laugh,to laugh B.laugh,laughing C.laugh,laugh D.to laugh,to laugh
4.Could you tell me who the novel _B__?
A.was written B.was written byr
C.was wrote D.wrote
5.Which of the following sentences is wrong?_C__
A.Why don't you go to the museum with us?
B.Why not go to the museum with us?
C.Why go to the museum with us?
D.Why to go to the museum with us?
请说明原因,