用所给词的适当形式填空。
（1）Tree Planting Day  ________   (be) on March 12th.
（2）I'm twenty years old.It's my________ (twenty) birthday today.
（3）Our country gets________  and________(strong)．
（4）It's over 1000________  (year) old.
（5）It's one of the________ (great) wonders in the world.
（6）We made________ (we) clothes from animal furs.
（7）There are many________(leaf) on the ground.
（8）Beijing is the capital of________  (Chinese)．
（9）The students are busy________  (grow) flowers.
（10）It's important for everyone________ (read)books.