1.Please wait for me for a little while!l'll be back _____.

1.Please wait for me for a little while!l'll be back _____.
A.in a moment B.in a day C.in a year D.in a month
2.You may come and see me if you have time.
______ _______ see me if you have time.
3.Oh,you did your homework ____ (wrong).Can you check it again?