In theface of ______ failure, it is the most important to keep up _____ good state ofmind． A．/ ;a B．a; / C．the; / D．/; the

"How many elephants did you see""_____"

Don’t forget to come to our school assembly(集会)tomorrow morning.—I won’t. I just now.

I forget the exact time ________ they reached the South Pole [ ]

________ the boy didn’t take medicine made his mother angry.