1) I have no idea where she is. She with friends in New York. a.
may be staying
b.
will be staying
c.
must be staying
2) Lawrence so naïve, it’s unlike him.
a.
may have been
b.
must have been
c.
can’t have been
3) He independently. I don’t think anyone is helping him.
a.
must be working
b.
may be working
4)Where is my book? I can't find it. - I'm not sure. Your cousin it in the garden.
a.
can't have been reading
b.
must have been reading
c.
may have been reading