2. The driver was at ____loss when ____word came that he was forbidden to drive for speeding.
Lewis was much admired ______ his work on the advanced medical research.
The pilot, whether ______ or design, made the plane do a sharp turn.
If you ______ go, at least wait until the rain stops.
The reason for his success is ______ he worked very hard.
He couldn’t ______ the fact that the money was found in his house.