Your mother ________ (be) a great person. You must really miss her now that she's gone...
must have been
I don't know why I am so tired these days. It ________ (be) because I haven't been sleeping well.
must be
Do you know where Carl is? He_________be out - his car keys are on the table.
can't
Oh, the phone is ringing. Answer it. It________be Kate.
might/may/could
Go and look in the kitchen for your gloves. The maid ________ (put) them there.
may/might/could have put
come in, you ______ be freezing out there !!!
must
She's not here yet. She______be stuck in traffic.
may/might/could
she ________ (be) in love with him. She said she never loved anyone.
can´t have been
this is not possible, you ____( be) serious when you said that !
can't have been
If he drives a mercedes benz he ________ be rich
must
He ___ (know) the answer . He was just too shy to say.
must've known
