很高兴为你解答.
1.I was a student ten years ago,now I am a bank clerk.
根据 ago 知道是过去,填过去式.根据now知道是现在,填一般现在时.2.Look at the boys.they are playing chess.
根据look知道是正在进行,用一般进行时.
3. Does your grandfather often tell stories for you
-----no,he doesn't
一般的情况用一般现在时,grandfather 是第三人称,故用三人称单数.4.My father will not visit beijing tomorrow.He will visit hong kong.
根据tomorrow 知道是将来时态
5. Don't sleep on the desk.
这是一个祈使句
6. Did your teacher go to the library yesterday?
--no,he went to the bookshop.
根据yesterday知道是发生在过去的事情,用一般过去式.
祝开心~!