—Mr. Li ______ to Mary carefully when I entered the classroom this morning.
—He is very patient ______ he is young.
A. talking; but B. was talking; though
C. talks; though D. talked; however
—Mr. Li ______ to Mary carefully when I entered the classroom this morning.
—He is very patient ______ he is young.
A. talking; but B. was talking; though
C. talks; though D. talked; however
B