Today Bob contradicted Ms. Li, our math teacher, in class, _____ made her angry with him.
___ the employees' working efficiency, the supervisor will allow them to have a coffee break.
You can find whatever you need at the shopping centre, ___ is always busy at the weekend.
There are hundreds of visitors ___ in front of the Art Gallery to have a look at Van Gogh’s paintings.
David said that it was because of his strong interest in literature ___ he chose the course.
Just in front of our house ___ with a history of 1,000 years.