In our school students are according to how much they know and how old they are.

Where did you find the professor who made the speech yesterday？” “It was in the hall ______ the students often have a meeting.”

149 Do not start a book unless you can seefrom the first few pages that it is ______ you can easily read and understand

Daniel had one month _____ last summer and he took a course _____ DIY.

Julie’s father _____ to London last month. He ______ there three times.