[please answer] appreciate=?

几道初中英语题
答案我知道要原因
here is some question for you ,please answer as soon as possible,thanks
1 tomorrow is grandmother's _____birthday.we are going to have a big ***
a sixty b sixties csixtieth d the sixtieth
2 ____mouse is _____animal.(填冠词）
3 this boy is jack,____monitor of class one
a a b an c the d
4 computers cannot compelety_______human beings to do all kinds of work_____present
a instead of;for btake the place of;for
what's the differences
5 the suspect denied ________(steal)the valuable painting before the withess appeared
6 shanghai ________(become)more and more beautiful these years
7 we needn't worry about our future too much(keep the same meaning)
we____ ____to worry about our future too muuch
8 with____rice at home ,they didn't worry about the food
a a couple of b a pair of c pieces of d plenty of
9 more and more people realize the ________of the good enviornment.(important)是否加s