A driver should ________ the road when _________.
A. concentrate on; drive B. concentrate in; driving
C. concentrate to; drove D. concentrate on; driving
What he said was of ________.
A. great importance B. important C. great important D. importantly
_________, the subject belongs to biology.
A. Strictly spoken B. Spoken strictly C. Strictly speaking D. Speaking strictly
_____seems _______something unusual in his eyes.
A. It; being B. It; to be C. There ;to be D. There; being
When I come in, I found a strange girl ______in the corner.
A. seating B. seated C. to be seating D. seat
The girl looked at me with a ____expression. Maybe the problem was quite ___.
A. puzzled; puzzling B. puzzling; puzzled C. puzzled; puzzled D. puzzling; puzzling
