1.Tomorrow is Tom's birthday, and he invited ________ (we)
to his birthday party.
2.Jim has a red pen, and the blue one is ________ (he), too.
3.—Who is that boy wearing a white hat?
—Ben, a friend of ________ (I).
4.________ (neither) of us wants to go to the park today,
because we have to finish so much homework.