英语问题、、、麻烦各位帮帮忙！！！

将下列句子改为否定句，每空一词。
1.They need more workers and money to build the bridge.
They----- ------more workers and money to build the bridge.
2.We`ve already finished our homework.
We-----finished our homework------.
3.Alice does the shopping on Sundays,too.
Alice------ ------the shopping on Sundays,-------.
4.Bill did well in the sports meeting last months.
Bill------ -------well in the sports meeting last month.
5.You`d better finish the job as soon as possible.
You`d better------- -------the job as soon as possible.
6.Both Jack and Fred are running fast.
------Jack------Fred------running fast.
7.Do it yourself.
------ ------it yourself.
8.I know all of them.
I know----- -----them.

将下列句子改为一般疑问句，每空一词。
1.The book cost him three dollars.
------the book ------him three dollars?
2.She has dinner with her grandparents once a week.
------she ------dinner with her grandpa

将下列句子改为否定句，每空一词。
1.They need more workers and money to build the bridge.
They (don't need) more workers and money to build the bridge.
2.We've already finished our homework.
We (haven't) finished our homework (yet).
3.Alice does the shopping on Sundays, too.
Alice (doesn't do) the shopping on Sundays, (either).
4.Bill did well in the sports meeting last months.
Bill (didn't do) well in the sports meeting last month.
5.You`d better finish the job as soon as possible.
You`d better (not finish) the job as soon as possible.
6.Both Jack and Fred are running fast.
(Neither) Jack (nor) Fred (is) running fast.
7.Do it yourself.
(Don't do) it yourself.
8.I know all of them.
I know (none of) them.

将下列句子改为一般疑问句，每空一词。
1.The book cost him three dollars.
(Did) the book (cost) him three dollars?
2.She has dinner with her grandparents once a week.