英语填空题（用所给词的正确形式填空）^_^
1.this kind of computer is worth _(buy)
2.he alwasy practises_(piay) the piano after school
3.don't open your books.please keep them _(close)
4.amy is good at _(dance)
5.it's my first time _(visit)the great wall
6.you'd better_(do)it at once
7.the boys _(piay) football when i got there
8.stamps are used for _(send) letters
9.mr zhang _(leave) for beijing next week
10.he _(read) while i _(eat) an apple this morning