I keep medicines on the top of the shelf, out of the children’s .
| A.reach | B.hand | C. hold | D. place | 
The classroom is big enough, but we’ll have to move if we have more students.
| A.for the moment | B.on the moment | C.in a moment | D.for a moment | 
—You know. Bob is a little slow ____ understanding, so…
 — So I have to be patient ______ him.
| A.in ; with | B.on; with | C.in; to | D.at; for | 
Mark was a student at this university from 1999 to 2003, ____ , he studied very hard and was made Chairman of the Students' Union.
| A.during which time | B.for which time | C.during whose time | D.by that time | 
The accident is reported to have occurred __________ the first Sunday in February.
| A.at | B.on | C.in | D.to | 
People may have different opinion about Karen, but I admire her. ______, she is a great musician.
| A.After all | B.As a result | C.In other words | D.As usual |