英语 1.Jim was so busy ------ the answer from Lily's paper tha

英语 1.Jim was so busy ______ the answer from Lily's paper that he forgot _____ her name into his.
英语 1.Jim was so busy ______ the answer from Lily's paper that he forgot _____ her name into his.
A.to copy;to change B.to copy;changing C.copying;to change D.copying;changing
2.How was the old man this morning?
He looked _______.
A.happy B.happily C.to be happy D.to be happily
3.I was told to be here before eight.
Oh,you ______.I'm sorry for not telling you that we have changed the plan.
A. must B.can't C.may D.needn't