One of the sides of the board should be painted yellow, and .
With the monthly test approaching, Paul is busy preparing for it, only_____ playing basketball to relax a bit.
According to the new class rule, students found cellphones in the classrooms will be asked to leave the rooms immediately.
It is a widely held belief____honesty and integrity(正直) are the qualities ____ a leader should be made of.
Scientists believe that it might be several years ______ the medicine can be used on human beings.
I used to think Jack was not a man to count on, but I have changed my ______ as he saved an old man from the fire.