My MP4 player isn’t in my bag. Where        I have put it?

Close the door of fear behind you, and you ____ the door of faith open before you.

—What does the sign over there read？—“No person___smoke or carry a lighted cigarette,cigar or pipe in this area.”

---- Where will you start your work after graduation, in the south or in the north? ---- Mm, it’s not been decided yet. I _____ continue my study for a higher degree.

—Oh my god! You__ wear slippers to attend the conference． —I'm sorry I forgot there is a conference．