Though the “No smoking” signs have existed for long in public places, heavy smokers often ________ them and light up cigarettes.
The computer center, ________ last year, is very popular among the students in this school.
We can’t take part in the competition ________ we get our student card.
He made a promise __________he would help me.
It was in New Zealand ___ Elizabeth first met Mr. Smith.
There is a ______ table in the middle of the room.