We all wonder so many students and their families are visiting Boston —area schools, such as Harvard, in their summer holidays.
There were 20 people sitting in the room, half ___ were women.
---How __ is it? ---It's not __. It’s only two miles ___.
It rained heavily yesterday,___, he didn't turn up at the meeting.
The story happened ___ a cold winter day.
That’s __ I can tell you.