用所给词的适当形式填空
I hope you will have ________(successful)at work．
It is ________(polite)of you to say like that．
Please speak to your leader ________(gentle)．
She likes cooking very much．She is going to be a ________(cooking)．
Help ________(yourself)to some fish, boys and girls．
用适当的介词填空
They think he is kind and often ask him ________ play ________ them．
Jack often helps ________ our homework and explains things ________ us．
He will use the rest ________ the summer holiday ________ help ________ our school project．
He will have ________ speak ________ front of the whole school．
I’ll recommend you ________ the new chairperson ________ the Students’ Union．