__________ it’s very difficult, remember not to give up until the last minute.
The story is ________ and all of us are _______ in it.
Pens are used to write ______and paper is used to write ______.
I didn’t know ______.
–Is that Kate’s car? --It ______be hers. She has just gone for a meeting.
I used to _______ with my wife and watch TV movies at home.