Speculating about the past

Complete the sentences with must, might/could or can't.
1. They _______________ (go) home without telling us. I've got their train tickets.

• could have gone
• mustn't have gone
• can't have gone
• might have gone

I am not sure where Sally is. She _____________(go) to the movies.

• could have went
• can't have gone
• might have gone
• must have went

Which movie did you watch? You ________________(see) the new Tom Cruise movie. You always watch his movies!

• could have saw
• must have saw
• can't have seen
• must have seen

When we arrived home, we noticed a window was broken. Someone __________________(break in.)

• might have broke
• must have broken
• could have broke
• can't have broken

Impossible! That _________________ (be) John, he was with me when the robbery happened.

• must have been
• might have be
• can't have been
• could have be

I sent the homework via email, but the teacher __________________(check) it. Sometimes he checks his email, but sometimes he doesn't.

• might not check
• must have not checked
• can't have checked
• could have not checked

Diego ___________________ (go) to his German class. Yesterday he wasn't feeling well, but I don't know how he felt later in the day.

• might have not gone
• can't have gone
• mustn't have gone
• could have gone

You _______________ (see) the new Matt Damon film. It hasn't been released yet!

• must have seen
• could have not seen
• can't have seen
• might have not see

There are no cookies. Somebody _____________(eat) them.

• can't have ate
• must have ate
• could have eaten
• must have eaten

I sent Keith a text, but he _____________ (not receive) it. He doesn't always carry his phone with him.

• can't have received
• might not have received
• could have not received
• mustn't have received