At Halloween, I often _________ Monkey King.
People cut down too many trees, _____ the greenhouse effect becomes more and more serious.
—Who is the baby in this photo?—It’s my sister’s son. The photo _____ by her by e-mail ten days ago.
—Would you please ____ my son from the station for me?—I’ll be glad to.
—Why don’t you use your own knife?—Sorry, I’ve _____ it at home.
If you don’t go to the meeting tomorrow, ________ ?