—What did the teacher say just now?
—He asked me _________.( )
A.how could I work it out
B.when did I go to the library
C.why I looked unhappy then
D.who I am waiting for
—What did the teacher say just now?
—He asked me _________.( )
A.how could I work it out
B.when did I go to the library
C.why I looked unhappy then
D.who I am waiting for