He failed in the final examination. He seems to be low spirits.(
A. at
B. of
C. on
D. in
He quickly focused the camera the children.(
A. at
B. in
C. on
D. to
The teacher speaks of our performance in the competition.(
A. highly
B. high
C. good
D. well
They are trying a new presenter for the show.(
A. out
B. on
C. at
D. to