It was in the lab was in the charge of Mr white they did the experiment.
The classroom is big enough, but we’ll have to move if we have more students.
—You know. Bob is a little slow ____ understanding, so… — So I have to be patient ______ him.
Mark was a student at this university from 1999 to 2003, ____ , he studied very hard and was made Chairman of the Students' Union.
The accident is reported to have occurred __________ the first Sunday in February.
People may have different opinion about Karen, but I admire her. ______, she is a great musician.