.Look! It _____be your uncle .—-It_____ be him . He has gone to Xi’an.

Oh, it’s you, Ella! Your voice sounds very different _____ the phone. What’s happening?[ ]

Where is Paul, do you know?– He ________ the library. He won’t return until nine.

There was no doubt ____ it was in the supermarket _____ I lost my wallet yesterday.

Be careful when you take exams. Check your paper to ________ there are no mistakes before you hand it in.