英语问题，急急急，高手进，在线等！！！！！！！！！！！！！！！！！！

Question

用正确时态填空：

I shall have completed his movel by december ,By then I _________(work) on it for months.

Now that you _________(finish)work you can go home.

用should ，ought to 或have to填空：

I couldn't go shopping yesterday afternoon,I___________(go)to the dentist.

I really __________(buy) a new car but I can't afford to.

I didn't know you would be late,You __________(telephone).

Answer 1

had been working 要注意是过去一直在进行的
have finished
had to go
ought to buy
should have telephoned

Answer 2

will have worked
have finished

had to go
ought to buy
should have telephoned

Answer 3

will have worked 将来完成时
have finished
had to go
ought to buy
should have telephone

Answer 4

had worked
have finished

had to go
ought to buy
should have been telephoned