根据句意用所给词的适当形式填空,补全句子 please give me four_____(glass)of ____(water).

根据句意用所给词的适当形式填空,补全句子 please give me four_____(glass)of ____(water).
还有：
he bought two____(watch) in the shop yesterday.
there are some ____(policeman) in the steet.
mr and mrs white don't have any___(child) of their own.
four____(man) and two ____(woman) spoke at the meeting.
______(be) their trousers long or short?
short.
we'd like two _____(piece) of _____(bread), please.
i have a lot of ____(homework)to do today.
there ______(be) some ______(sugar) in the bowl.