The last bus has left; ________, you’ll have to walk there.
The house, ______ door often stays open until late at night, works as a home for the guards, some of ______ are from the countryside.
---What have you learned from your experience in the USA?---Well, meeting people from another culture ______ be very difficult.
. ---Have you seen ____ iphone? I left it on the desk this morning.---Is it ____ white one? I think I saw it somewhere.
It is a ________,but is a chance as well.
How long have you ________ in the army?