---- Is Ann knocking at the door?--- No, it ______ be Ann. She has gone to Beijing.
There are _______ new words in the article, so it’s not difficult for us.
He _______the book in half a year
-I usually go there by train.-Why not ________by boat for a change?
I saw two _______ ________ an apple when I came by.
The sports report is really boring. I can’t _______ it.