I called ________ his house this morning, but he wasn’t in. So I left a message telling him I would call______ him the next day.
The teacher went up to the sleeping student and patted him on the head, _______.
________ a mobile phone can you ring ______ you want to talk with anyway.
Pop music is such an important part of society______ it has even influenced our language.
What he has told us about the situation in Iraq simply doesn’t make any________.
He suggested the problem worth paying attention ______ at the meeting.